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: 101521 Whats Up Dude
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: 575669 Tyler DeWitt
This chemistry video tutorial provides a basic introduction into hydrogen bonding. Hydrogen bonding occurs in molecules when hydrogen is attached to highly electronegative small atoms such as nitrogen, oxygen, and fluorine. Hydrogen bonds are very strong dipole dipole interactions. Molecules that contain hydrogen bonds such as water are very polar. Hydrogen bonds is one of the strongest types of intermolecular forces. This video contains a few examples and illustrations of hydrogen bonds in water and in HF. New Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&t=25s&list=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/
Views: 13374 The Organic Chemistry Tutor
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.
Views: 37460 The Organic Chemistry Tutor
How Many Hydrogen Bond Can a Single Water Molecule Form?||Hydrogen Bond in Water Blog Post: https://chemistry291.blogspot.com/2018/12/hydrogen-bonding-in-waterwhat-is-h.html #HowManyHydrogenBondCanaSingleWaterMoleculeForm? #HydrogenBondingInWater(H2O) #Formationofhydrogenbondinwater #hydrogenbondbetweenwatermolecule
Views: 281 Chemistry Tutorial 360
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: 265091 Khan Academy
H2O molecules have two Hydrogens bonded to an extremely electronegative Oxygen. The H therefore has strong partial positive charge. The Oxygen on the other hamd has two spare lone pairs which have high charge density. So overall two lone pairs will attract two partial positive H. In NH3, Nitrogen has only one lone pair but three partial positive Hydrogen that are directly bonded to electronegative Nitrogen. Now 1 lone pair on N will only attract 1 partial positive H. 2 partial positive will then not be able to attract lone pairs as lone pairs are not available. so fewer hydrogen bonds will be formed. In HF, there is only 1 partial positive H but three lone pairs on Flourine. So again, two extra lone pairs will not be able to form Hydrogen bonds due to non availability of partial positive H, so few Hydrogen bonds will be formed in HF. Hence NH3 and HF will have lesser melting and boiling points compared to H2O. For more Video Lectures for O Levels, A Levels, IB Diploma, AP Courses & Edexcel: https://www.megalecture.com https://www.youtube.com/megalecture For Skype/Whiteboard Subject Experts and Tutors and Free Online Trial Classes, Contact: [email protected]
Views: 493 Mega Lecture
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: 140556 AtomicSchool
Hydrogen Bonds - What Are Hydrogen Bonds - How Do Hydrogen Bonds Form #Thealazizcollege
Views: 3 The Al-Aziz College
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: 1786422 CrashCourse
Learn the basics about the covalent bonding of hydrogen, oxygen and nitrogen as a part of the overall topic of properties of matter. The noble gas structure and covalent bonding is also discussed. 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 The Fuse School. 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]
Views: 66347 FuseSchool - Global Education
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: 3033 Easy Tips 4 Learner
The polar nature of water gives it some important properties. It allows things to dissolve in it. It has a high specific heat capacity. It’s got a high heat of vaporisation. Water molecules are cohesive meaning they can stick to each other. They are adhesive meaning they can stick to other things. Water has a high surface tension. And because hydrogen bonds force solid water to form in a crystalline structure, ice is less dense than water and therefore it floats. Twitter: https://twitter.com/science_sauce Instagram: https://instagram.com/sciencesauce_online Instagram for students: https://instagram.com/sciencesauce_students Home: http://sciencesauceonline.com First song by Joakim Karud (https://soundcloud.com/joakimkarud) Second song by Ikson (https://soundcloud.com/ikson)
Views: 242 Science Sauce
Get the definition of hydrogen bond explanation of hydrogen bonding including intermolecular hydrogen bonding, intramolecular hydrogen bonding, effect of hydrogen boning on solubility and boiling point with the help of video lecture by HRDTEducation. www.letmescience.in
Views: 10792 Chemistry Concept
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: 26128 Socratica
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: "Valence Shell Electron Pair Repulsion (VSEPR) Theory and Shapes of Molecules" https://www.youtube.com/watch?v=q_NeyW5pe-Y -~-~~-~~~-~~-~-
2.2 Water: Polarity of Water and Hydrogen Bonds Understanding that: - Hydrogen bonding and bipolarity explain the cohesive, adhesive, thermal and solvent properties of water - Structure of water causes it to be polar and thus cause hydrogen bonds to form in between them
Views: 9697 Alex Lee
Also known as, "Pretty Boy Bond" . (bonding, bonding, bonding) [Chorus:] This right here is my bond (bond, bond) All the electrons* are on my bond (bond, bond) Everybody pay attention (yeah) This right here is my hydrogen bond (ayeee) Hydrogen bond (ayye) [x4] Electrons form octets when I hydrogen bond, Ionic or covalent its a hydrogen bond Watch my hydrogen bond (ayye) [x2] Electrons form octets when I hydrogen bond, Ionic or covalent its a hydrogen bond Bonding! [Soulja Boy:] Get out the way Hydrogen's on the screen Me and flourine we'll bond ionic-ly. You see me everywhere since im in H2O (water) Theres hydrogen in water, and i think you should know (woosh) I'm lookin' for a single bond; two-electron parr (pair) A strong attractive force holds them togeth-are (the Sun) Learning about bonding will take you very far Chorus comes up in 5, 4, 3, 2, 1 [Chorus] [Soulja Boy:] Hydrogen bonding with water is pretty nice (woo) Two hydrogens one oxygen makes up all my ice (burr) For hydrogen gas, you'll need a subscript two (twice?) Its in the Magnificent Seven, just ask Mr. Hsu (swag) You might think that we, we are pretty smart (we are) Hydrogen and I; we always toppin' charts. (clever) I hope you've learned about, how molecules bond (yeah) Oh, and hydrogen atoms can never ever ever double bond! [Chorus]
Views: 13901 shanemckeon1
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: 12031 Richard Thornley
Types of Hydrogen Bonding - Inter as well as Intra
Views: 98387 Any Time Padhai Academy
You drink it, clean with it, and swim in it, but do you really understand it? Take a few minutes and learn about how awesome water really is. Subscribe: http://bit.ly/2wJ0DHa TheCrazyChosenOne: https://www.youtube.com/channel/UC_Oz1ntBqRGuhZ5g9MvgyqA Learn more about water! https://owlcation.com/stem/5-Properties-of-Water https://socratic.org/questions/what-are-some-examples-of-properties-of-water https://science.howstuffworks.com/environmental/earth/geophysics/h2o7.htm Now, on to water aka dihydrogen monoxide aka H2O. Water is made up of one oxygen atom, and two hydrogen atoms. And looks something like this. This structure makes water a very polar molecule. Without going into the beautiful details, Oxygen has a net negative charge while the opposite ends with the hydrogens have a net positive charge. This allows water molecules to form hydrogen bonds and gives water many of its other properties. Cohesion and Adhesion are two such properties. Cohesion is water’s attraction to itself. The hydrogen bonds that I mentioned facilitate this. This is also why water has surface tension, allowing bugs to walk on it. Additionally, cohesion keeps water a liquid at moderate temperatures instead of a gas. Adhesion is water’s attraction to other surfaces. Water will adhere to anything it can form a hydrogen bonds with. This is the reason for capillary action, where water climbs up a narrow glass tube. Another property of water is it’s high heat capacity. Heat capacity is a substance ability to absorb heat. More accurately, it’s the amount of energy needed to raise one gram of a substance by one degree celsius. This allows water to absorb temperature changes and keep air temperature at moderate levels. Which is pretty cool… Finally, water is known as the universal solvent, meaning that a wide range of substances can be dissolved in it. This includes hydrophilic and polar molecules like sugars and salts. Substances that generally don’t dissolve in water are hydrophobic, like oils. So now you know a little more about the properties of H2O, and bare in mind, we only covered a portion of water’s amazing properties, so be sure to check the links in the description to learn more. And, as always throw any questions in the comment section! Now, I want to give a shoutout to one of my subscribers, TheCrazyChosenOne. The channel is linked below. It’s a gaming channel with a lot of Fortnite recently, and who doesn’t love some Fortnite gameplay, am I right? Easy listening, enjoyable watching. The channel is not limited though, it features a wide variety of game from Minecraft to Call of Duty. So check it out, and if you like the content, give it some love with likes, comments, and a sub. If you want your channel featured in my next vid, let me know. I’ll catch you next time.
Views: 1872 2 Minute Classroom
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: 4160 SnapRevise
Hydrogen Bonding (হাইড্রোজেন বন্ধন) A hydrogen bond is a weak type of force that forms a special type of dipole-dipole attraction which occurs when a hydrogen atom bonded to a strongly electronegative atom exists in the vicinity of another electronegative atom with a lone pair of electrons. These bonds are generally stronger than ordinary dipole-dipole and dispersion forces, but weaker than true covalent and ionic bonds. _ Fair Use Disclaimer: This channel may use some copyrighted materials without specific authorization of the owner but contents used here falls under the “Fair Use” as described in The Copyright Act 2000 Law No. 28 of the year 2000 of Bangladesh under Chapter 6, Section 36 and Chapter 13 Section 72. According to that law allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. "Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for -fair use- for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use." _ ►► আরও দেখুন "Youngster's World"- - বেসিক এবং অ্যাডভান্স লেভেল কম্পিউটার, ইন্টারনেট, মোবাইল, টেকনোলজি সম্পকীয় এডুকেশন প্রদান করে ফ্রীতে । প্রত্যেকদিন নতুন নতুন ভিডিও দেখার জন্য SUBSCRIBE করুন For enquiries : [email protected] Contact No:01791873992 ফেসবুক লিঙ্কঃ www.facebook.com/shaon421 PLEASE SUBSCRIBE TO MY CHANNEL & STAY WITH ME. I'll try my best to help you. Throw your question on the comment box.
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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
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When Hydrogen is covalently bonded to either a Nitrogen, Oxygen or Fluorine atom, the large differences in electronegativities cause a strong dipole to form. This will form strong interactions between molecules and are called Hydrogen bonds.
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Types of Bond in chemistry are explained in this video. The explanation of chemical bonding and different types of chemical bonds that are explained in this video include ionic bonds, covalent bonds, coordinate bonds, and hydrogen bonds. Ionic Bond: Ionic bonding is seen when two atoms form a bond by donating or accepting electrons. In this type of chemical bonding, there is an electrostatic attraction between the ions which are oppositely charged. Covalent Bond: In covalent bonding, two atoms share electrons to be able to attain the configuration of their nearest noble gas. It is also called a molecular bond and is characterized by electrons sharing between atoms. Coordinate bond: In the case of coordinate bonding, both the electrons that form the bond come from the same atom. Coordinate bond is also known as a coordinate covalent bond or a dative covalent bond. Hydrogen Bond: Hydrogen bonding is a type of electrostatic attraction and is seen when a hydrogen atom which is bonded to a highly electronegative atom (like Nitrogen, Oxygen, Fluorine) comes close to another adjacent atom having a lone pair of electrons. Get more information about the types of bond here- https://byjus.com/chemistry/ionic-covalent-and-coordinate-bond/ Thank you for watching. If you liked this video, please subscribe to our channel and press the like button. Click on the bell icon to turn on notifications and you will never miss out on our latest videos! Explore more content like this on our channel. Still have a doubt about this topic? Or Have an idea/ suggestion for a new video? Please comment below.
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Types of Bond in Protein Structure http://www.biologyexams4u.com/2014/03/bond-used-in-protein-structure.html Protein Structure http://www.biologyexams4u.com/2011/10/protein-structure.html Stability of Proteins - Bonds Involved http://www.biologyexams4u.com/2013/01/protein-stability.html Multiple Choice Quiz on Protein Structure http://www.quizbiology.com/2013/05/biochemistry-quiz-on-protein-structure.html Difference between DNA and Protein http://www.majordifferences.com/2018/01/difference-between-dna-and-protein-dna-vs-protein.html
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Moof's Medical Biochemistry Video Course: http://moof-university.thinkific.com/courses/medical-biochemistry-for-usmle-step-1-exam
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Because they only pair with each other, a base (bp) is unit consisting of two nucleobases bound to other by hydrogen bonds. The covalent bonds are labeled 5. The 3' and 5' is labeled. A url? Q youtube watchattached to each sugar ring is a nucleotide base, one of the four bases adenine (a), guanine (g), cytosine (c), and thymine (t). Complementary pairs always involve one purine and pyrimidine base the button below image highlights hydrogen bonds between guanine cytosine in a dna double helix. A hydrogen bond is a non covalent bond; They have much stronger attractions than van der waals 3. Adenine and thymine are two of the four nitrogen bases found in structure dna. How many hydrogen bonds are between adenine nucleic acids csudh project for chemistry. Measurement and theory of hydrogen bonding contribution to structure dna an introduction genetic analysis ncbi nih. What do the 3' and 5' connect to? The phosphate groups. Kcal value can be taken as an estimate of how much less stable the hydrogen bonds f with a are than t although dna structure was not known, basic building blocks had been known for many years. Nucleotides and the double helix life sciences cyberbridge. Dna structure the importance of hydrogen bonds bright hub. How many hydrogen bonds are between a and t? Youtube. These interactions are specific a base pairs with t, and c g. Nucleic acids csudh project for chemistry. The two strands of dna stay together by h bonds that occur between complementary nucleotide base pairs. They form the building blocks of dna double helix, and contribute to folded structure both rna. If dna were thought of as a spiral staircase, the base pairs on previous page you determined that most stable complimentary pairing takes place between and t with two hydrogen bonds g c three in. The pairing of adenine and thymine share two hydrogen bonds, thus the bond is slightly weaker longer there are bonds that exist between. John wiley and sons hydrogen bond interactions between the bases allow two strands of dna to form double helix. These studies showed that dna is composed of only four basic molecules called nucleotides, which are identical how many hydrogen bonds present between guanine and cytosine, adenine thymine respectively? Give reasons for your answer. Hydrogen bonds (as we learned when studied amines) are much weaker than covalent bonds, but since there many 2 feb 2012 however, a more recent structural study observed close distances between f and a, serving as evidence of possible hydrogen bonding the analog natural thus 3. The hydrogen bonds are labeled 5. How many hydrogen bonds are between a and t? Youtubecomplementary nucleotide bases bonding in dna base pairs. Two hydrogen in our model systems, excellent agreement between bp86 tz2p geometries and the x ray crystal structures was achievedhydrogen bonds are important many fields of biological chemistry. The first two (a, g) are examples of a purine which the hydrogen bonding between complementary bases
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