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Hydrogen Bonds - What Are Hydrogen Bonds - How Do Hydrogen Bonds Form
 
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In this video we discuss hydrogen bonds. We cover how do hydrogen bonds form, the different elements that take part in hydrogen bonds, and why doesn't oil and water mix. What are hydrogen bonds? An attractive force called a hydrogen bond can exist between certain molecules. These bonds are weaker than ionic or covalent bonds, because it takes less energy to break these types of bonds, however, a large number of these bonds going on can exert a strong force. Hydrogen bonds are the result of an unequal charge distribution on a molecule, these molecules are said to be polar. If we look at a water molecule, we can see the oxygen atom shares electrons with 2 different hydrogen atoms. So, in total this molecule has 10 protons, 8 from oxygen and 1 each from the hydrogen atoms, and a total of 10 electrons, 2 shared between the oxygen atom and hydrogen atom number one, 2 shared between the oxygen atom and hydrogen atom number 2, and the other 6 non shared electrons from the oxygen atom. So, this water molecule is electrically neutral, but it has a partial positive side, the hydrogen side, and a partial negative side, the oxygen side of the molecule. The electrons are not shared equally within the molecule, as they have a higher probability of being found closer to the nucleus of the oxygen atom, giving that end a slightly negative charge. So, the hydrogen atoms end of the molecule will have a slightly positive charge. These charged ends weakly attach the positive end of one water molecule to the negative end of an adjacent water molecule. When water is in liquid form there a few hydrogen bonds, solid form, many bonds, and when water is steam or gas, there are no bonds, because the molecules are too far apart to form any bonds. Hydrogen bonds only form between hydrogen atoms that are covalently bonded, or bonds where electrons are being shared and not transferred, to an oxygen, nitrogen or fluorine atom. These bonds make water ideal for the chemistry of life. Hydrogen bonds are also important in the structure of proteins and nucleic acids, which we will cover in later videos. So, now we know that water molecules are polar, or have slightly positive and slightly negative ends, and in fact, many lipids, or fats and oils, are not polar. So their molecules share electrons equally in their bonds. So, these are nonpolar molecules. This means that when water and oil come together they do not form bonds with one another. Even when we try to mix them, the water molecules will eventually separate because their polar molecules are attracted to one another and will form hydrogen bonds, separating the water and the nonpolar oil molecules.
Views: 80262 Whats Up Dude
Hydrogen bonding in water | Water, acids, and bases | Biology | Khan Academy
 
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Reactants and products in reversible and irreversible chemical reactions. Watch the next lesson: https://www.khanacademy.org/science/biology/water-acids-and-bases/hydrogen-bonding-in-water/v/hydrogen-bonding-in-water?utm_source=YT&utm_medium=Desc&utm_campaign=biology Missed the previous lesson? https://www.khanacademy.org/science/biology/chemistry--of-life/chemical-bonds-and-reactions/v/intermolecular-forces-and-molecular-bonds?utm_source=YT&utm_medium=Desc&utm_campaign=biology Biology on Khan Academy: Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascinating and intricate systems that make life possible. Dive in to learn more about the many branches of biology and why they are exciting and important. Covers topics seen in a high school or first-year college biology course. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy's Biology channel: https://www.youtube.com/channel/UC82qE46vcTn7lP4tK_RHhdg?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 260604 Khan Academy
Hydrogen Bonding and Common Mistakes
 
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To see all my Chemistry videos, check out http://socratic.org/chemistry Hydrogen bonding can be so confusing, and in this video we talk about some common mistakes. Hydrogen bonds are intermolecular forces between molecules. They form because one atom has a high electronegativity, so it gets a partial negative charge, and the hydrogen gets a partial positive charge.
Views: 540047 Tyler DeWitt
Hydrogen Bonding
 
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This chemistry video tutorial explains how to determine which molecules are capable of exhibiting hydrogen bonding. Examples and practice problems include the following molecules: H2O, CH4, CH3F, HF, CH3OH, CH3OCH3, CH3COOH, CH3CHO, H2S, NH3, PH3, (CH3)3N, (CH3)2NH, C2H4, C2H2, HOCH2CH2OH, CH3SH, and CH3CONH2. This video also discusses the difference between a hydrogen bond and a covalent bond and the difference between an intermolecular bond and an intramolecular bond. it shows the formation and hydrogen bonding that occurs between water molecules.
Types of Hydrogen Bonds | Intermolecular and Intramolecular Bonding
 
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There are two different types of hydrogen bonds. They are Intermolecular bonding and Intramolecular bonding. i) Intermolecular hydrogen bonding. This type of bond is formed between the two molecules of the same or different compounds. Some examples of the compounds exhibiting intermolecular hydrogen bonds are : Hydrogen fluoride and water. 1. Hydrogen fluoride, H F. In the solid state, hydrogen fluoride consists of long zig-zag chains of molecules associated by hydrogen bonds as shown in the figure. Therefore, hydrogen fluoride is represented as HFN. 2. Water In water molecule, the electronegative oxygen atom forms two polar covalent bonds with two hydrogen atoms. The oxygen atom due to its higher electronegativity acquires partial negative charge and the two hydrogen atoms acquire partial positive charge. The negatively charged oxygen forms two hydrogen bonds with two positively charged hydrogen atoms of two neighbouring molecules. Each oxygen atom is tetrahedrally surrounded by four hydrogen atoms as shown in visual. Hydrogen bonding in water results in a hydrogen bridge (HOH) network extending in three dimensions and the associated water molecule may be expressed as H Two O N. ii) Intramolecular hydrogen bonding. This type of bond is formed between hydrogen atom and Nitrogen, Oxygen or Flurine atom of the same molecule. This type of hydrogen bonding is commonly called chelation and is more frequently found in organic compounds. Intramolecular hydrogen bonding is possible when a six or five membered rings can be formed. Importance of H-bonding i) Life would have been impossible without liquid water which is the result of intermolecular H-bonding in it. ii) Hydrogen bonding increase the rigidity and strength of wood fibres and thus makes it an article of great utility to meet requirements of housing, furniture, etc. iii) The cotton, silk or synthetic fibres also own their rigidity and tensile strength to hydrogen bonding. iv) Most of our food materials such as carbohydrates and proteins also consist of hydrogen bonding. v) Hydrogen bonding also exists in various tissues, organs, skin, blood and bones.
Views: 2093 Easy Tips 4 Learner
Ionic and Covalent Bonds, Hydrogen Bonds, van der Waals - 4 types of Chemical Bonds in Biology
 
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There are four types of chemical bonds essential for life to exist: Ionic Bonds, Covalent Bonds, Hydrogen Bonds, and van der Waals interactions. We need all of these different kinds of bonds to play various roles in biochemical interactions. These bonds vary in their strengths. In Chemistry, we think of Ionic Bonds and Covalent bonds as having an overlapping range of strengths. But remember, in biochemistry, everything is happening in the context of water. This means Ionic bonds tend to dissociate in water. Thus, we will think of these bonds in the following order (strongest to weakest): Covalent, Ionic, Hydrogen, and van der Waals. Also note that in Chemistry, the weakest bonds are more commonly referred to as “dispersion forces.” Related Chemistry video: Ionic Bonds vs Covalent Bonds http://bit.ly/2cUG6C8 Our series on Biology is aimed at the first-year college level, including pre-med students. These videos should also be helpful for students in challenging high school biology courses. Perfect for preparing for the AP Biology exam or the Biology SAT. Also appropriate for advanced homeschoolers. You can also follow along if you are just curious, and would like to know more about this fascinating subject. ***** Our current biology textbook recommendation is Campbell Biology from Pearson. 10th edition Amazon Link: http://amzn.to/2mahQTi 11th edition Amazon Link: http://amzn.to/2m7xU6w Amazon Used Textbooks - Save up to 90% http://amzn.to/2pllk4B For lighter reading, we recommend: I Contain Multitudes: The Microbes Within Us and a Grander View of Life by Ed Yong http://amzn.to/2pLOddQ Lab Girl by Hope Jahren http://amzn.to/2oMolPg ***** This video was made possible by the generous donations of our Patrons on Patreon. We dedicate this video to our VIP Patron, Vishal Shah. We’re so thankful for your support! ***** Please Subscribe so you'll hear about our newest videos! http://bit.ly/1ixuu9W If you found this video helpful, please give it a "thumbs up" and share it with your friends! If you'd like to support more great educational videos from Socratica, please consider becoming our Patron on Patreon! https://www.patreon.com/socratica ***** Written and Produced by Kimberly Hatch Harrison About our instructor: Kimberly Hatch Harrison received degrees in Biology and English Literature from Caltech before working in pharmaceuticals research, developing drugs for autoimmune disorders. She then continued her studies in Molecular Biology (focusing on Immunology and Neurobiology) at Princeton University, where she began teaching as a graduate student. Her success in teaching convinced her to leave the glamorous world of biology research and turn to teaching full-time, accepting a position at an exclusive prep school, where she taught biology and chemistry for eight years. She is now the head writer and producer of Socratica Studios. ****** Creative Commons Picture Credits: Salt crystals https://en.wikipedia.org/wiki/File:Halit-Kristalle.jpg Author: W.J. Pilsak Hydrogen Bonding in water https://en.wikipedia.org/wiki/File:3D_model_hydrogen_bonds_in_water.svg Author: Qwerter Products in this video: Preparing for the Biology AP* Exam (School Edition) (Pearson Education Test Prep) - http://amzn.to/2qJVbxm Cracking the AP Biology Exam, 2017 Edition: Proven Techniques to Help You Score a 5 (College Test Preparation) - http://amzn.to/2qB3NsZ Cracking the SAT Biology E/M Subject Test, 15th Edition (College Test Preparation) - http://amzn.to/2qJIfHN
Views: 36587 Socratica
Hydrogen Bonding, H-Bonding, Intermolecular Hydrogen Bonding, Intramolecular Hydrogen Bonding
 
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For further reading Hydrogen Bonding, Please click on the link given below .... http://vedupro.blogspot.in/2013/02/hydrogen-bonding-h-bonding.html HYDROGEN BONDING -- H Bonding The force of interaction between Hydrogen atoms which is already covalently bonded and more electronegative atom present in the system is known as Hydrogen Bonding. In 1920, Latimer and Rodebush introduced the idea of "Hydrogen Bond" to explain the nature of association in liquid state of substance like water, hydrogen fluoride, ammonia, formic acid etc. In a Hydrogen Compound, when hydrogen is bonded to highly electronegative atom (such as F, O, N) by a covalent bond, the electron pair is attracted towards electromagnetic atoms so strongly that a dipole results i.e., one end carries a positive charge (H-end) and other end carrier a negative charge......
Views: 10954 vedupro
Hydrogen Bonding | A-level Chemistry | AQA, OCR, Edexcel
 
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https://goo.gl/31T06Y to unlock the full series of AS & A-level Chemistry videos for the new OCR, AQA and Edexcel specification. In today’s video we’re introduced to hydrogen bonding. We’ll look at how hydrogen bonds occur between electron deficient hydrogen and fluorine, oxygen or nitrogen. Next, we’ll discuss how hydrogen bonds affect the properties of water – more precisely why ice is less dense than water, why surface tension, melting and boiling points are high and how its viscosity is affected. The video concludes with an exam style question solved in detail.
Views: 3938 SnapRevise
Hydrogen Bonding- Water Drops On A Penny
 
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A Discrepant Event is something that will astonish the observer. So how many drops of water can you pile on a penny? It is very incredible. Can you do better? This experiment demonstrates the cohesive forces of water also known as Hydrogen Bonds. These forces are responsible for water forming droplets instead of spreading out.
Views: 62390 kentchemistry.com
Hydrogen Bonding
 
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Explanation of the feature required in a covalent molecule for the intermolecular force to be called a hydrogen bond. Followed by examples and a look at the three anomalous properties of water brought about as a result of hydrogen bonding
Views: 4521 MaChemGuy
What are the Factors affecting Strength of Hydrogen Bond - H2ChemHacks
 
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Hydrogen Bonds are found between simple molecules that contain either H-F, H-O or H-N bonds. Two factors affect the effectiveness of Hydrogen bonds and hence the boiling point of the molecule. The first factor is extensiveness of the Hydrogen bond, or the average number of Hydrogen bonds each molecule can form. If a molecule can form more Hydrogen bonds, then during boiling more Hydrogen bonds need to be broken which results in a higher boiling point. The second factor is the polarity of the H-F, H-O and H-N bond. In H-F bond is the most polar hence the hydrogen bond that results from this is the strongest, while H-N bond is the least polar which results in the weakest hydrogen bond. To learn more about each of these factors and when to consider them, watch this video tutorial now! Topic - Chemical Bonding, Physical Chemistry, JC, H2, A Level Chemistry, Singapore Found this video useful? Please LIKE this video and SHARE it with your friends. SUBSCRIBE to my YouTube Channel for new A Level H2 Chemistry video lessons every week! Any feedback, comments or questions to clarify? Suggestions for new video lessons? Drop them in the COMMENTS Section, I would love to hear from you! Do you know you can learn Chemistry Concepts under a minute? Follow me on Instagram for my weekly one-minute video lessons at https://www.instagram.com/chemistryguru/ I am also conducting JC H2 Chemistry classes at Bishan Central, Singapore. With my years of experience tutoring hundreds of JC students since 2010, I am confident that I can make H2 Chemistry Simpler for you too! For more information please visit https://chemistryguru.com.sg/ -~-~~-~~~-~~-~- Please watch my latest video: "Determine Limiting Reagent" https://www.youtube.com/watch?v=rdJsGEDMPOk -~-~~-~~~-~~-~-
Intermolecular Forces and Boiling Points
 
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Why do different liquids boil at different temperatures? It has to do with how strongly the molecules interact with each other. Find out all the different ways, and how to use them to make predictions about matter! Subscribe: http://bit.ly/ProfDaveSubscribe [email protected] http://patreon.com/ProfessorDaveExplains http://professordaveexplains.com http://facebook.com/ProfessorDaveExpl... http://twitter.com/DaveExplains General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths Biology Tutorials: http://bit.ly/ProfDaveBio American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Views: 555848 Professor Dave Explains
Properties of Water
 
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Explore some properties of water with the Amoeba Sisters! It's all about those hydrogen bonds. Video has handout: http://www.amoebasisters.com/handouts Terms discussed include adhesion, cohesion, surface tension, specific heat - all made possible by those amazing hydrogen bonds. Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSister­s Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology *We mention that water makes up "3/4 of the Earth's surface" and we wish we had said "nearly" This number is going to be an estimate, but here is a source that puts it around 71%. https://water.usgs.gov/edu/earthhowmuch.html We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music is this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog We have YouTube's community contributed subtitles feature on to allow translations for different languages. YouTube automatically credits the different language contributors below (unless the contributor had opted out of being credited). We are thankful for those that contribute different languages. If you have a concern about community contributed contributions, please contact us.
Views: 700654 Amoeba Sisters
Water - Liquid Awesome: Crash Course Biology #2
 
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Hank teaches us why water is one of the most fascinating and important substances in the universe. Follow SciShow on Twitter: http://www.twitter.com/scishow Like SciShow on Facebook: http://www.facebook.com/scishow Review: Re-watch = 00:00 Introduction = 00:42 Molecular structure & hydrogen bonds = 01:38 Cohesion & surface tension = 02:46 Adhesion = 03:31 Hydrophilic substances = 04:42 Hydrophobic substances = 05:14 Henry Cavendish = 05:49 Ice Density = 07:45 Heat Capacity = 09:10 Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Citations: http://www.extension.umn.edu/distribution/youthdevelopment/components/0328-02.html http://www.uni.edu/~iowawet/H2OProperties.html http://www.hometrainingtools.com/properties-water-science-teaching-tip/a/1274/ http://science.howstuffworks.com/environmental/earth/geophysics/h2o7.htm http://www.robinsonlibrary.com/science/chemistry/biography/cavendish.htm http://chemistry.mtu.edu/~pcharles/SCIHISTORY/HenryCavendish.html http://www.nndb.com/people/030/000083778/ http://www.notablebiographies.com/Ca-Ch/Cavendish-Henry.html TAGS: water, hydrogen, oxygen, molecule, covalent bond, cohesion, adhesion, polarity, hydrogen bond, surface tension, capillary action, hydrophilic, hydrophobic, ionic bond, ion, universal solvent, henry cavendish, chemistry, specific gravity, density, heat capacity, evaporation, biology, crashcourse, crash course, hank green Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 3058872 CrashCourse
Properties of Water | Hydrogen Bonding in Water | Biology | Biochemistry
 
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Why is water essential for Life to exist on Earth? We are about 60% water - and there are some organisms that are as much as 90% water! What is so important about water? How does it support life? In this video, we discuss the special properties of water that make it the “Solvent of Life.” Chief among these properties is the extensive Hydrogen Bonding between water molecules that make water an extremely cohesive liquid (the molecules stick together). Due to the extensive hydrogen bonding, water has some emergent properties that impact life on Earth in many ways. These include: Cohesion Adhesion High surface tension High specific heat High heat of vaporization Ice Floats (Ice is less dense as a solid than liquid water) For each of these properties, we discuss how they impact living creatures on Earth. ❀❀❀❀❀❀❀❀❀❀ Our series on Biology is aimed at the first-year college level, including pre-med students. These videos should also be helpful for students in challenging high school biology courses. Perfect for preparing for the AP Biology exam or the Biology SAT. Also appropriate for advanced homeschoolers. You can also follow along if you are just curious, and would like to know more about this fascinating subject. Our current biology textbook recommendation is Campbell Biology from Pearson. 10th edition Amazon Link: http://amzn.to/2mahQTi 11th edition Amazon Link: http://amzn.to/2m7xU6w Shop Amazon Used Textbooks - Save up to 90% http://amzn.to/2pllk4B For lighter reading, we recommend: I Contain Multitudes: The Microbes Within Us and a Grander View of Life by Ed Yong http://amzn.to/2pLOddQ Lab Girl by Hope Jahren http://amzn.to/2oMolPg ❀❀❀❀❀❀❀❀❀❀ This video was made possible by the generous donations of our Patrons on Patreon! We dedicate this video to our VIP Patron, Tracy Karin Prell. Tracy is an amazing advocate for science communication. Thank you so much, Tracy! ❀❀❀❀❀❀❀❀❀❀ Please Subscribe so you'll hear about our newest videos! http://bit.ly/1ixuu9W If you found this video helpful, please give it a "thumbs up" and share it with your friends! If you'd like to support more great educational videos from Socratica, please consider becoming our Patron on Patreon! https://www.patreon.com/socratica ❀❀❀❀❀❀❀❀❀❀ Directed by Michael Harrison Written and Produced by Kimberly Hatch Harrison About our instructor: Kimberly Hatch Harrison received degrees in Biology and English Literature from Caltech before working in pharmaceuticals research, developing drugs for autoimmune disorders. She then continued her studies in Molecular Biology (focusing on Immunology and Neurobiology) at Princeton University, where she began teaching as a graduate student. Her success in teaching convinced her to leave the glamorous world of biology research and turn to teaching full-time, accepting a position at an exclusive prep school, where she taught biology and chemistry for eight years. She is now the head writer and producer of Socratica Studios. ❀❀❀❀❀❀❀❀❀❀ Creative Commons Picture Credits Basilisk running on water https://en.wikipedia.org/wiki/File:Basiliscus_basiliscus_running_on_water_-_pone.0037300.s001.ogv Author: Minetti et al. xylem http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0089934 Author: Boutilier et al 2014 PLOS Meniscus http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0050320 Author: Jingmin et al 2012 PLOS Little girl drinking https://pixabay.com/en/girl-thirsty-drink-fountain-water-2241750/ Author: brisch27 Army scout drinking https://pixabay.com/en/girl-scout-army-thirsty-sensuality-932421/ Author: AdinaVoicu Water drop Macro View http://www.publicdomainpictures.net/view-image.php?image=173836&picture=water-drop-macro-view Author: JeanBeauford Woman in the Ocean http://www.publicdomainpictures.net/view-image.php?image=172525&picture=woman-in-the-ocean Author: JeanBeauford Water on fabric https://en.wikipedia.org/wiki/File:Water_droplet_lying_on_a_damask.jpg Author: Petar Milosevic Water strider https://en.wikipedia.org/wiki/File:WaterstriderEnWiki.jpg Author: PD Polar bear on ice https://en.wikipedia.org/wiki/File:Polar_Bear_AdF.jpg Author: Arturo de Frias Marques Penguins on ice https://en.wikipedia.org/wiki/File:Pygoscelis_antarctica_trying_to_get_to_iceberg.wmv.ogv Author: Brocken Inaglory Cells (colourized) https://pixabay.com/en/white-blood-cell-cell-blood-cell-543471 Author: skeeze Hydrogen bonds in water https://en.wikipedia.org/wiki/File:3D_model_hydrogen_bonds_in_water.svg Author: Qwerter Water strider footage https://en.wikipedia.org/wiki/File:Vesimittareita.ogv Author: Uusijani roadrunner https://en.wikipedia.org/wiki/File:The_Greater_Roadrunner_Walking.jpg Author: Jessie Eastland Partially frozen pond http://www.publicdomainpictures.net/view-image.php?image=15079&picture=partially-frozen-pond Author: David Wagner
Views: 19963 Socratica
The Hydrogen Bonding Angle of Water
 
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Download at http://itsrainmakingtime.com/john-ellis-hydrogen-bonding-angle-water/ Inventor John Ellis has revolutionized water filtration for decades with a lightweight, patented technology for energizing and distilling tap water. Sickly and weak from radium treatments in his youth, John began to look for a way to reverse the damage. He developed a device that would recycle water hundreds of times per gallon -- a much more thorough process than the water filtration processes commonly used in the public domain. By using a proprietary method for heating, cooling, and distilling water, John Ellis was able to produce water 827 times purer than what comes out of municipal water supplies. The results, verified by York Labs, confirmed that water from John's machines was even purer than the lab standard for pure water. John Ellis is an alumnus of The Choate School and Lafayette College, where he earned an engineering degree in steam plant design. He went on to work at Douglas Aerospace and later Honeywell, where he developed his patented technology for recycling, energizing, and distilling water. It's Rainmaking Time!® learned in 2004 that simply filtering or heating water is an ineffective measure against infection by pathogenic bacteria. Our interview with the stewards of the water industry highlighted the fact that removing toxic materials from water does not remove their energetic signatures. In our ongoing investigation of the science of water, we learned about the healing and energetic properties of structured water, which is determined by the hydrogen bonding angle. According to John Ellis, whereas the bonding angle for ordinary water is 104 degrees, and 101 degrees for distilled water, the bonding angle between hydrogen molecules in water produced by his device is 114 degrees. Water that has been structured this way holds up to 3000% more energy, and is sufficient to destroy disease markers in the bloodstream. John Ellis' water filtration methodology represents a major step forward in personal health empowerment, anti-aging, and disease prevention. Join us with the inventor himself as we discuss the history, evidence, and testimonials that support this unprecedented breakthrough in water structuring technology.
Views: 40610 ItsRainmakingTime
Intermolecular Forces - Hydrogen Bonding, Dipole-Dipole, Ion-Dipole, London Dispersion Interactions
 
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This chemistry video tutorial focuses on intermolecular forces such hydrogen bonding, ion-ion interactions, dipole dipole, ion dipole, london dispersion forces and van deer waal forces. It contains plenty of examples and practice problems to help you understand the most important concepts related to this material. General Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&list=PL0o_zxa4K1BV-uX6wXQgyqZXvRd0tUUV0&index=3 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/ Here is a list of topics: 1. Ion - Ion dipole interactions of KF and CaO 2. Electrostatic Force and Lattice Energy- The effect of charge and ionic radii or size 3. How To Determine Which Ionic Compound has a Higher Melting Point - NaF vs KCl 4. Ion-Dipole Interactions - NaCl and H2O 5. Definition of a Dipole - Polar Molecules & Charge Separation 6. Dipole-Dipole Interactions of Polar Molecules - Partial Charge Electrostatic Attractions of CO 7. Hydrogen Bonding between Hydrogen, Nitrogen, Oxygen, and Fluorine 8. Intermolecular Forces vs Intramolecular Forces 9. Hydrogen Bonding vs Polar & Nonpolar Covalent Bonds 10. London Dispersion Forces & Van Der Waals Forces 11. Permanent Dipoles and Temporary Induced Dipoles - Distribution of electrons in electron cloud 12. Difference Between Atoms and Ions - Cations vs Anions - Number of Electrons and Protons 13. The relationship between Polarizability and Dispersion Forces 14. How To Determine the Strongest Intermolecular Forces In Compounds Such as MgO, KCl, H2O, CH4, CO2, SO2, HF, CH3OH, LiCl, CH2O, CO, and I2 15. The relationship between Boiling Point and Vapor Pressure 16. Straight Chained vs Branched Alkanes - Boiling Point and Intermolecular Forces - Surface Area 17. Ranking Boiling Point In Order of Increasing Strength for I2, Br2, F2, and Cl2 18. Polar and Nonpolar Organic Compounds - Polarity and Water Solubility 19. Ranking Boiling In Decreasing Order For HF, HCl, HBr, and HI 20. The effect of Molar Mass and Number of electrons on the Overall Intermolecular Force / LDF
Surface Tension and Hydrogen Bonding Demonstration
 
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Demonstrates the strength of hydrogen bonding in water as sulfur, with a density of approximately 2 g/ml or twice that of water, is held on the water's surface by the hydrogen bonds between the water molecules. Once a drop of detergent is introduced the hydrogen bonds begin to be broken and the cascade of sulfur begins.
Views: 4760 Tommie Hennard
Chemistry 9.1 Properties of Water from Hydrogen Bonding
 
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Why does Ice float? This lesson looks at the expansion of ice, as well as other properties of water, from a molecular perspective and intermolecular attractions.
Views: 13883 IsaacsTEACH
HYDROGEN BONDING {FULL CONCEPT} | IIT JEE | NEET | AIMS
 
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follow ne on unacademy for fully Explained video lectures https://unacademy.com/user/BharatPanchal-92
Hydrogen Bonding Tricks
 
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Thank you all for the support offered. It motivates me to do better. Link for notes: https://jeepmt.wordpress.com My Unacademy profile link: https://unacademy.com/user/sachinranaIITB Link to the books I had used during my preparation: https://bestbooksjeeneetaiims.wordpress.com/2018/05/21/sr
Views: 27705 Sachin Rana [IITB]
Trick for Hydrogen Bonding
 
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types of hydrogen bonding Strength of Hydrogen bonding Why maleic acid is more acidic than fumaric acid? Why water has maximum density at 277 K ? Why water is a liquid but H2S is a gas?
Physical Properties of Alcohol: Hydrogen Bonding, Solubility and Boiling Point
 
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http://leah4sci.com/alcohol Presents: Physical Properties of Alcohol including Hydrogen Bonding, Solubility and Boiling Point Need help with Orgo? Download my free guide ’10 Secrets to Acing Organic Chemistry’ HERE: http://leah4sci.com/orgo-ebook/ In this video: [0:13] Understanding the Alcohol Functional Group [2:17] Hydrogen Bonds as Strongest IMF [3:35] Difference Between Soluble & Miscible [7:14] Solubility Rules for Molecules in Water [8:12] Effects of Boiling Point on IMF [11:58] Different Boiling Point of Butanol Alcohols have very unique hydrogen interactions. This video explains by looking at the intermolecular forces behind hydrogen bonding, alcohol's solubility in water, miscibility, the structure's effects on boiling point trends, and much more. Links & Resources Mentioned In This Video: Intro to Alcohol Reactions: http://leah4sci.com/introduction-to-alcohol-reactions/ Catch the entire Alcohol Video Series along with the Alcohol Practice Quiz and Cheat Sheet on my website at http://leah4sci.com/alcohol For more in-depth review on Alcohols including practice problems and explanations, come join my online membership site the organic chemistry study hall: http://leah4sci.com/join For private online tutoring visit my website: http://leah4sci.com/organic-chemistry Finally, for questions and comments, find me on social media here: Facebook: https://www.facebook.com/Leah4Sci Twitter: https://twitter.com/Leah4Sci Instagram: https://www.instagram.com/leah4sci/ Google+ : https://plus.google.com/u/0/+LeahFisch Pinterest: http://www.pinterest.com/leah4sci/
Views: 11752 Leah4sci
Chemical Bonding Introduction: Hydrogen Molecule, Covalent Bond & Noble Gases
 
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Chemical bonding introduction video shows how covalent bond means 2 hydrogen atoms can stick together to form a hydrogen molecule, H2. The video also explains why helium cannot form bonds and hence is called a noble gas. Subscribe to watch more online chemistry courses & science videos: http://www.youtube.com/channel/UCiX8pAYWBppIbtUZTfGnRJw?sub_confirmation=1 About Atomic School: Atomic School supports the teaching of Atomic Theory to primary school & science students . We provide lesson plans, hands-on classroom resources, demonstration equipment, quizzes and a Teacher's Manual to primary school teachers. Animated videos that clearly explain the scientific ideas supports learning by both teachers and students. As a teacher, you don't have to look anywhere else to implement this program. Our work has been verified by science education researchers at the University of Southern Queensland, Dr Jenny Donovan and Dr Carole Haeusler, who confirm that primary students are capable of learning much more complex scientific concepts than previously thought, and crucially, that they love it. Students run to class! The program has been trialed in Australian schools as well as schools in the Philippines, Iran and India. It is conducted as holiday workshops at the Australian Nuclear Science and Technology Organisation, the Queensland Museum as well as the World Science Festival. It has attracted wide media interest, including TV, radio and print, and the research data has been presented at prestigious American Education Research Association and Australian Science Education Research Association conferences. Atomic Theory underlies all the other sciences- genetics, electronics, nanotechnology, engineering and astronomy- so an early understanding will set them up for a more successful learning sequence for all their science subjects, and support their mastery of mathematics as well. We also have extension programs that cover Biology, Physics and Astronomy to an equal depth. About Ian Stuart (Email: [email protected]): The founder of Atomic School, Ian Stuart, taught Chemistry and Physics for 25 years at senior levels before he realized that his 8-year old son, Tom, could understand Atomic Theory at a much deeper level than he expected. After visiting Tom's class at school, he discovered that his peers could also grasp the abstract scientific concepts, as well as apply it usefully to the real world. Ian then developed a program to teach the advanced concepts of high school Chemistry, Physics and Biology to students 10 years younger than they normally would. He found that this engaged their interest in modern science early, and sustained it through to high school and beyond. It also sets them up for future success in their academic and career paths. Ian has a Bachelor's Degree in Chemistry from the University of Queensland and a Master's degree in Electrochemistry from the University of Melbourne. Connect with Atomic School on social media: http://facebook.com/AtomicSchool http://twitter.com/AtomicSchools http://instagram.com/AtomicSchools Video transcript: Let's do a thought experiment. Imagine a box filled with hydrogen atoms. Like billiard balls on a pool table, atoms actually move, and they do it in straight lines until they hit something … like another hydrogen atom. Oh! See that? They stuck together. They’re not separate hydrogen atoms any more, but a pair of hydrogen atoms moving together. There goes another pair. 4.1 When atoms join up like this, scientists call it a molecule. And they call the join between them a chemical bond. Here comes another hydrogen atom crashing into the hydrogen molecule. But this time it doesn’t stick. Instead it just bounces off. Hydrogen atoms bond once, and that’s it. They’re just like that. Pretty quickly all the hydrogen atoms will collide and pair off into molecules. They will keep hitting each other, but they'll just bounce off. Scientists like to have a shorthand way of writing this molecule thingi. Here’s one way to show it, with the hydrogen symbols joined by a stick to show the chemical bond between the atoms. Another way is to write H2, with the little 2 after the H and a bit lower. A number written this way is called a subscript. What do you think the 2 stands for? It counts the number of hydrogen atoms in the molecule. Easy, heh! So when we have a balloon filled with hydrogen gas, it really contains trillions of trillions of H2 molecules. Let's do another thought experiment. We'll go back to our box filled with hydrogen atoms, but this time put an oxygen atom in there too. When a hydrogen atom crashes into an oxygen atom, they stick together. But wait, when another hydrogen atom hits, it also sticks to the oxygen. What about a third hydrogen atom? No, that’s if for oxygen. It can only make 2 bonds and then it’s done.
Views: 131977 AtomicSchool
Hydrogen bonding (Inter & Intra) -IIT JEE Chemistry
 
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Types of Hydrogen Bonding - Inter as well as Intra
HYDROGEN BONDING DEFINITION - CLASS 11 CHEMISTRY| HYDROGEN BONDING DEFINITION  |CHEMICAL BONDING
 
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LIKE & SUBSCRIBE MY CHANNEL LINK TO GET MORE INFORMATIVE VIDEOS BELOW: https://www.youtube.com/channel/UCx3U_VSvrZALGioz9m1qMZw?view_as=subscriber Hello friends, this video is about the hydrogen bonding definition, importance and examples for class 9 and class 11 Chemistry. Learning objectives of this video are as follow: what is hydrogen bonding? also, explain by examples of hydrogen bonding | hydrogen bonding in water| hydrogen bonding in NH3| hydrogen bonding in DNA| hydrogen bonding in soap and detergent. Also explain the importance of hydrogen bonding that the boiling point, melting point, surface tension and viscosity of a substance due to hydrogen bonding, also discuss the hydrogen bonding in ice and the effect of hydrogen bonding on the solubility of a compound. my other video links are AS FOLLOW: ALSO RELATED TO HYDROGEN BONDING https://www.youtube.com/edit?o=U&video_id=MSUwUklykPw TYPES OF CHEMICAL BONDING https://www.youtube.com/edit?o=U&video_id=30ZYELggE0c IONIC BOND VERSES COVALENT BOND https://www.youtube.com/edit?o=U&video_id=r6D-lQuLKtQ TYPES OF COVALENT BOND: https://www.youtube.com/edit?o=U&video_id=UYyYCZbptcw METALLIC BOND: https://www.youtube.com/edit?o=U&video_id=79dwMD0bkNI -~-~~-~~~-~~-~- Please watch: "Hybridization of atomic orbitals , Sigma and Pi bonds| sp, sp2 , sp3 Hybridization | chemistry" https://www.youtube.com/watch?v=5jeawkKQP4c -~-~~-~~~-~~-~-
Views: 378 Digital Kemistry
Why Does Ice Expand?: "Structure of Water" 1961 John Skarulis, William Pasfield; Hydrogen Bond
 
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Support this channel: https://www.patreon.com/jeffquitney Physics & Physical Sciences playlist: https://www.youtube.com/playlist?list=PL_hX5wLdhf_JKIMNk88rKCkhpK73_qmHY Molecular Physics, Hydrogen Bond: Why does water expand when frozen, and have high surface tension? It is due to the electrostatic hydrogen bond, as explained in this film. Originally a public domain film, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original). https://en.wikipedia.org/wiki/Hydrogen_bond Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/ A hydrogen bond is a partially electrostatic attraction between a hydrogen (H) atom which is bound to a more electronegative atom or group, such as nitrogen (N), oxygen (O), or fluorine (F)—the hydrogen bond donor—and another adjacent atom bearing a lone pair of electrons—the hydrogen bond acceptor. Hydrogen bonds can be intermolecular (occurring between separate molecules) or intramolecular (occurring among parts of the same molecule). Depending on the nature of the donor and acceptor atoms which constitute the bond, their geometry, and environment, the energy of a hydrogen bond can vary between 1 and 40 kcal/mol. This makes them somewhat stronger than a van der Waals interaction, and weaker than fully covalent or ionic bonds. This type of bond can occur in inorganic molecules such as water and in organic molecules like DNA and proteins. Intermolecular hydrogen bonding is responsible for the high boiling point of water (100 °C) compared to the other group 16 hydrides that have much weaker hydrogen bonds. Intramolecular hydrogen bonding is partly responsible for the secondary and tertiary structures of proteins and nucleic acids. It also plays an important role in the structure of polymers, both synthetic and natural... A ubiquitous example of a hydrogen bond is found between water molecules. In a discrete water molecule, there are two hydrogen atoms and one oxygen atom. Two molecules of water can form a hydrogen bond between them that is to say oxygen-hydrogen bonding; the simplest case, when only two molecules are present, is called the water dimer and is often used as a model system. When more molecules are present, as is the case with liquid water, more bonds are possible because the oxygen of one water molecule has two lone pairs of electrons, each of which can form a hydrogen bond with a hydrogen on another water molecule. This can repeat such that every water molecule is H-bonded with up to four other molecules, as shown in the figure (two through its two lone pairs, and two through its two hydrogen atoms). Hydrogen bonding strongly affects the crystal structure of ice, helping to create an open hexagonal lattice. The density of ice is less than the density of water at the same temperature; thus, the solid phase of water floats on the liquid, unlike most other substances. Liquid water's high boiling point is due to the high number of hydrogen bonds each molecule can form, relative to its low molecular mass. Owing to the difficulty of breaking these bonds, water has a very high boiling point, melting point, and viscosity compared to otherwise similar liquids... The number of hydrogen bonds formed by a molecule of liquid water fluctuates with time and temperature... https://en.wikipedia.org/wiki/Water#Polarity_and_hydrogen_bonding Since the water molecule is not linear and the oxygen atom has a higher electronegativity than hydrogen atoms, it is a polar molecule, with an electrical dipole moment: the oxygen atom carries a slight negative charge, whereas the hydrogen atoms are slightly positive... Because of its polarity, a molecule of water in the liquid or solid state can form up to four hydrogen bonds with neighboring molecules. These bonds are the cause of water's high surface tension and capillary forces. The capillary action refers to the tendency of water to move up a narrow tube against the force of gravity. This property is relied upon by all vascular plants, such as trees. The hydrogen bonds are also the reason why the melting and boiling points of water are much higher than those of other analogous compounds like hydrogen sulfide (H 2S). They also explain its exceptionally high specific heat capacity (about 4.2 J/g/K), heat of fusion (about 333 J/g), heat of vaporization (2257 J/g), and thermal conductivity (between 0.561 and 0.679 W/m/K). These properties make water more effective at moderating Earth's climate, by storing heat and transporting it between the oceans and the atmosphere...
Views: 4223 Jeff Quitney
Atomic Hook-Ups - Types of Chemical Bonds: Crash Course Chemistry #22
 
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Atoms are a lot like us - we call their relationships "bonds," and there are many different types. Each kind of atomic relationship requires a different type of energy, but they all do best when they settle into the lowest stress situation possible. The nature of the bond between atoms is related to the distance between them and, like people, it also depends on how positive or negative they are. Unlike with human relationships, we can analyze exactly what makes chemical relationships work, and that's what this episode is all about. If you are paying attention, you will learn that chemical bonds form in order to minimize the energy difference between two atoms or ions; that those chemical bonds may be covalent if atoms share electrons, and that covalent bonds can share those electrons evenly or unevenly; that bonds can also be ionic if the electrons are transferred instead of shared: and how to calculate the energy transferred in an ionic bond using Coulomb's Law. -- Table of Contents Bonds Minimize Energy 01:38 Covalent Bonds 03:18 Ionic Bonds 05:37 Coulomb's Law 05:51 -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1701046 CrashCourse
Chemistry  Hydrogen bonding (important questions for BOARD EXAM)
 
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Q1. Why ortho nitro phenol is more volatile than para nitro phenol? Why NH3 is more soluble than PH3? Why ammonia has higher boiling point than phosphine? Why water is more viscous than hydrogen fluoride? Why water is liquid whereas hydrogen sulphide is gas?
Polar Bonds and Hydrogen Bonds
 
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Simple explanation of polar covalent bonds and hydrogen bonds. Find more free tutorials, videos and readings for the science classroom at ricochetscience.com
Views: 59929 RicochetScience
Chemistry of energy,   covalent bonds.   hydrogen bonds, water and solubility, and  catalysts
 
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This lecture takes you through some applications of chemistry including some covalent bonding, hydrogen bonding and polarity, solubility, and the energy of chemical reactions including the concept of catalysts
Views: 176 Dr Greg
Intermolecular Forces - Hydrogen Bonding, Dipole Dipole Interactions - Boiling Point & Solubility
 
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This organic chemistry video tutorial provides a basic introduction into intermolecular forces, hydrogen bonding, and dipole dipole interactions. It explains how to determine which molecule has a higher boiling point and which has a higher solubility in water. Subscribe: https://www.youtube.com/channel/UCEWpbFLzoYGPfuWUMFPSaoA?sub_confirmation=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor https://www.facebook.com/MathScienceTutoring/ New Organic Chemistry Playlist https://www.youtube.com/watch?v=6unef5Hz6SU&index=1&list=PL0o_zxa4K1BXP7TUO7656wg0uF1xYnwgm&t=0s
Water: A Polar Molecule
 
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Water: A Polar Molecule In this video Paul Andersen explains how the polarity of water makes life on the planet possible. Oxygen is highly electronegative and pulls the electrons closely creating a partial negative charge. The polarity of water (and the corresponding hydrogen bonds) create cohesion, adhesion, capillary action, high specific heat, and a universally good solvent. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: Adblocker. English: Table of Electronegatives, March 24, 2013. Own work. http://commons.wikimedia.org/wiki/File:Electronegative.jpg. Blacus, Victor. Two Phases (water and Oil) in the Same State of Aggregation (liquid)., September 2010. Victor Blacus. http://commons.wikimedia.org/wiki/File:Water_and_oil.jpg. "File:Blue Linckia Starfish.JPG." Wikipedia, the Free Encyclopedia. Accessed February 28, 2014. http://en.wikipedia.org/wiki/File:Blue_Linckia_Starfish.JPG. "File:Bozeman MT Areal.jpg." Wikipedia, the Free Encyclopedia. Accessed February 27, 2014. http://en.wikipedia.org/wiki/File:Bozeman_MT_areal.jpg. "File:Downtown-Seattle.JPG." Wikipedia, the Free Encyclopedia. Accessed February 27, 2014. http://en.wikipedia.org/wiki/File:Downtown-Seattle.JPG. "File:Hex ice.GIF." Wikipedia, the Free Encyclopedia. Accessed February 27, 2014. http://en.wikipedia.org/wiki/File:Hex_ice.GIF. "File:Surface Tension March 2009-3.jpg." Wikipedia, the Free Encyclopedia. Accessed February 27, 2014. http://en.wikipedia.org/wiki/File:Surface_tension_March_2009-3.jpg. "File:Water-Elpot-Transparent-3D-Balls.png." Wikipedia, the Free Encyclopedia. Accessed February 27, 2014. http://en.wikipedia.org/wiki/File:Water-elpot-transparent-3D-balls.png. H'arnet. Français : Niveau D'un Liquide Dans Un Ensemble de Tubes Capillaires Par Rapport Au Niveau de La Surface Libre Du Liquide Dans Des Tubes de Section Ne Faisant Pas Intervenir La Capillarité Appartenant Tous À Un Même Système de Vases Communicants., August 17, 2008. Own work. http://commons.wikimedia.org/wiki/File:Capillarit%C3%A9.PNG. Jynto. Space-Filling Model of the Allolactose Molecule, a Disaccharide Similar to Lactose., June 9, 2011. Own work This chemical image was created with Discovery Studio Visualizer. http://commons.wikimedia.org/wiki/File:Allolactose-3D-spacefill.png. ———. Space-Filling Model of the Allolactose Molecule, a Disaccharide Similar to Lactose., June 9, 2011. Own work This chemical image was created with Discovery Studio Visualizer. http://commons.wikimedia.org/wiki/File:Allolactose-3D-spacefill.png. Kdv2754. English: A Ball and Stick Model of a Triglyceride Fat., September 31, 2008. Own work. http://commons.wikimedia.org/wiki/File:Triglyceride_ballandstick.GIF. Melgar, Michael. A Drop of Water Frozen by Flash, March 15, 2007. english wikipedia. http://commons.wikimedia.org/wiki/File:Michael_Melgar_LiquidArt_resize_droplet.jpg. MesserWoland. Deutsch: Kapillarität Am Beispiel von Wasser Und QuecksilberEnglish: CapillarityNederlands: CapillariteitTürkçe: Kılcallık, November 9, 2006. own work created in Inkscape, based on the graphics by Daniel Stiefelmaier. http://commons.wikimedia.org/wiki/File:Capillarity.svg. NASA. English: Astronaut Clayton Anderson Watches as a Water Bubble Floats in the Middeck of Space Shuttle Discovery during the STS-131 Mission. Note That His Image in the Bubble Is Upside down Because the Bubble Refracted the Light., April 12, 2010. www.nasa.gov : HTML : JPG. http://commons.wikimedia.org/wiki/File:Clayton_Anderson_zero_g_edit.jpg. NASA/JPL-Caltech. English: This Artist's Concept Shows a Simulated View from the Surface of Jupiter's Moon Europa. Europa's Potentially Rough, Icy Surface, Tinged with Reddish Areas That Scientists Hope to Learn More About, Can Be Seen in the Foreground. The Giant Planet Jupiter Looms over the Horizon., August 6, 2013. http://www.nasa.gov/centers/jpl/multimedia/pia17043.html#.UgLCUuig5w0. http://commons.wikimedia.org/wiki/File:View_from_Europa%27s_Surface_(Artist%27s_Concept).jpg. Pallbo. English: Image of Sugarcubes Isolated on Black., November 3, 2007. Own work. http://commons.wikimedia.org/wiki/File:Sugarcubes.jpg. Riccio. Italiano: Molecole D'acqua Con Evidenziati I Legami a Idrogeno Ma Non I Momenti Di Dipolo)., January 4, 2014. Own work. http://commons.wikimedia.org/wiki/File:Molecole_d%27acqua.png. "Salts & Solubility." PhET. Accessed February 27, 2014. https://phet.colorado.edu/en/simulation/soluble-salts.
Views: 344766 Bozeman Science
The Chemical Bond: Covalent vs. Ionic and Polar vs. Nonpolar
 
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Ionic Bond, Covalent Bond, James Bond, so many bonds! What dictates which kind of bond will form? Electronegativity values, of course. Let's go through each type and what they're all about. Subscribe: http://bit.ly/ProfDaveSubscribe [email protected] http://patreon.com/ProfessorDaveExplains http://professordaveexplains.com http://facebook.com/ProfessorDaveExpl... http://twitter.com/DaveExplains General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths Biology Tutorials: http://bit.ly/ProfDaveBio American History Tutorials: http://bit.ly/ProfDaveAmericanHistory
Views: 251674 Professor Dave Explains
Typical question on hydrogen bonding
 
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Hydrogen bonding is more powerful among the molecules of HF rather that among the molecules of water. Even though the boiling point of water is higher(100 degree centigrade) than that of hydrogen fluoride(20 degree centigrade). How? This is explained in this video through an illustrative example.
Covalent Bonding in Water, Methane, Ammonia & Hydrogen Fluoride | Chemistry for All | FuseSchool
 
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In this video we will look at covalent bonds in methane, ammonia, water and hydrogen fluoride. They are small, covalently-bonded molecules. The atoms within them share electrons because they have half full or more than half full valence shells of electrons: they are non-metals. Methane is a fuel, ammonia is used in household cleaners, water is a drink and the essence of life, and hydrogen fluoride is used to etch glass. The bonding in methane, ammonia, water and hydrogen fluoride shows a pattern: methane is carbon bonded to four hydrogen atoms; ammonia is nitrogen bonded to three hydrogen atoms; water is oxygen bonded to two hydrogen atoms, and hydrogen fluoride is fluorine bonded to just one hydrogen atom. Carbon, nitrogen, oxygen and fluorine appear in the periodic table in this order, moving along the second row from left to right. Carbon has four out of eight electrons in its outer shell, so makes four covalent bonds. Nitrogen has five out of eight electrons in its outer shell, so can make three covalent bonds to make the shell full. Oxygen has 6 electrons in its outer shell. It can bond with two hydrogen atoms to share 2 more electrons. It now has a full outer shell of 8 electrons. Ammonia has two electrons, called a lone pair of electrons, occupying the fourth position. These electrons take up space. Because electrons are negatively charged, lone pairs repel bonds even more strongly than bonds repel each other. This makes ammonia less symmetric than methane. The water molecule is bent in shape. Oxygen has two lone pairs. Negatively charged lone pairs are slightly attracted to the hydrogen atoms, so there is a weak attraction between molecules. Forces between molecules are a little stronger in water than in ammonia or methane. Water is liquid at room temperature and pressure, whilst ammonia a gas that is easily liquefied, and methane is a gas. Intermolecular forces are normally very weak in covalent compounds, but in water they are just strong enough to keep it liquid. A bit more energy is needed to overcome these forces and boil it. If water were not a liquid, life as we know it would be completely different! Ethanol contains carbon and oxygen bonding. The carbon atoms always form four bonds and the oxygen forms two. Remember, carbon forms 4 bonds, nitrogen forms 3 bonds and has one lone pair of electrons, and oxygen forms two bonds and looks bent. SUBSCRIBE to the Fuse School YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. JOIN our platform at www.fuseschool.org This video is part of 'Chemistry for All' - a Chemistry Education project by our Charity Fuse Foundation - the organisation behind FuseSchool. These videos can be used in a flipped classroom model or as a revision aid. Find our other Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV Twitter: https://twitter.com/fuseSchool Access a deeper Learning Experience in the Fuse School platform and app: www.fuseschool.org Follow us: http://www.youtube.com/fuseschool Friend us: http://www.facebook.com/fuseschool This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: [email protected]
Hydrogen Bonding Chemistry Videos for IIT-JEE, NEET - Bhaskar Sharma Lectures
 
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Hydrogen Bonding Chemistry Video Lectures to Prepare IIT-JEE, NEET. For Bhaskar Sharma Lectures, PDF, notes call 9826015241 Useful Links for You: My Website - http://fundatime.com/ Bhaskar Sharma G+ https://plus.google.com/u/0/+bhaskarsharmaIITJEE Bhaskar Sharma Twitter https://twitter.com/Funda_Time Bhaskar Sharma LinkedIn http://in.linkedin.com/in/fundatime Bhaskar Sharma FB Page https://www.facebook.com/bhaskarsharmachemistry/
Views: 56293 bhaskar sharma
Ice structure with thermal energy and showing hydrogen bonds
 
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Made from the Water Module in the VMD package from the University of Illinois.
Views: 353 Gregg Swackhamer
Water: A simple covalent substance with hydrogen bonds acting between molecules.
 
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Highly Recommended - Top Tutors for All Subjects at All Levels here: https://spires.co/franklychemistry This short flash animation takes you down to a millionth of a millimetre to where you can see how water molecules behave. If water is colled to 0 Celsius it freezes. At that point the molecules have sufficiently low kinetic energy for the hydrogen bonds to hold the molecules together permanently.
Views: 905 FranklyChemistry
Intermolecular Forces - Hydrogen Bonding 002
 
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Which of the following particles can make hydrogen bonds with water?
Structure Of Water Molecule - Chemistry Of Water - Properties Of Water - Composition Of Water
 
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In this video we discuss the structure of water. We cover how and why is water a solvent to other substances, and how the ability of water to act as a solvent makes it a great transporting agent in the body. Transcript and notes The structure of water The chemistry of water Water is an inorganic molecule that is the most important compound in the body. In fact, a normal adult’s body weight is made up of 50% or more of water. A molecule of water has one oxygen atom covalently bonded to 2 hydrogen atoms. Covalent bonds being chemical bonds that are formed by the sharing of one or more pairs of electrons by the outer energy levels or shells of two atoms. Water molecules are also polar molecules, even though the oxygen atom shares electrons with the hydrogen atoms, the electrons are not shared equally within the molecule. This gives the oxygen side of the molecule two partial negative charges, and each of the hydrogen’s a slightly positive charge. This means that each water molecule can form up to 4 hydrogen bonds with adjacent water molecules. Hydrogen bonds are the result of an unequal charge distribution on a molecule, these molecules are said to be polar. This property allows water to act as a very effective solvent, which means it is able to dissolve or break apart many other substances. Substances that do dissolve or break apart in water are called hydrophilic, which means water loving. Non polar substances that do not dissolve in water are called hydrophobic, or water fearing. Some substances such as glucose molecules dissolve and remain intact in water, as water molecules surround the substance forming a hydration shell around the molecule. Some substances dissolve and dissociate or break apart in water. Table salt or NaCl, when added to water will dissociate to form positive Na ions and negative Cl ions, with hydration shells forming around each ion. This property of water allows it to function as a transporter, as water based fluids such as blood transport substances dissolved in water throughout the body. Non polar hydrophobic substances such as fats and cholesterol that do not bond with water must be enclosed within a transport protein molecule to be transported within blood. Other notes Water also absorbs and gives up heat slowly, which means it retains a relatively constant temperature. This property plays an important role in maintaining body temperature. This can be seen during exercise, as water or sweat is evaporated from the surface of the skin. Water also functions as a lubricant moistening food making it easier to swallow and decreasing friction as is the case with synovial fluid located within certain joints. Water acts as a cushion in some areas of the body, as the fluid surrounding the brain and spinal cord are water based. Water helps keep tissues moist, such as the eyes, nose and throat, enabling them to function properly as well as helping keep skin from drying and cracking. And water helps to excrete wastes in the body, as some unwanted substances are eliminated through urine.
Views: 12076 Whats Up Dude
4.4 What are Hydrogen Bonds ? [SL IB Chemistry]
 
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When hydrogen is covalently bonded to either F,O or N then the molecule has the ability to make hydrogen bonds. These are almost always Intermolecular forces in IB Chemistry. Hydrogen bonds are the strongest intermolecular force in IB Chem. Dr Atkinson converted to renewables soon after. final music by: Katia Galkin https://soundcloud.com/russianhush
Views: 11354 Richard Thornley
Why does ice float in water? - George Zaidan and Charles Morton
 
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View full lesson: http://ed.ted.com/lessons/why-does-ice-float-in-water-george-zaidan-and-charles-morton Water is a special substance for several reasons, and you may have noticed an important one right in your cold drink: ice. Solid ice floats in liquid water, which isn't true for most substances. But why? George Zaidan and Charles Morton explain the science behind how how hydrogen bonds keep the ice in your glass (and the polar ice caps) afloat. Lesson by George Zaidan and Charles Morton, animation by Powerhouse Animation Studios Inc.
Views: 764091 TED-Ed
Surface tension | States of matter and intermolecular forces | Chemistry | Khan Academy
 
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Surface tension in water, and how the surface tension is related to hydrogen bonding. Watch the next lesson: https://www.khanacademy.org/science/chemistry/states-of-matter-and-intermolecular-forces/introduction-to-intermolecular-forces/v/capillary-action-and-why-we-see-a-meniscus?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Missed the previous lesson? https://www.khanacademy.org/science/chemistry/states-of-matter-and-intermolecular-forces/introduction-to-intermolecular-forces/v/solubility?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Chemistry channel: https://www.youtube.com/channel/UCyEot66LrwWFEMONvrIBh3A?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 236934 Khan Academy
Chemical Bonds: Covalent vs. Ionic
 
08:57
Mr. Andersen shows you how to determine if a bond is nonpolar covalent, polar covalent, or ionc. Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
Views: 616733 Bozeman Science
03 Hydrogen Bonds
 
15:28
In this lesson, hydrogen bonds are studied. The lesson proceeds then to explain some of the physical properties of water that can be attributed to hydrogen bonds.
Views: 423 Mindset Learn

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