This video provides a fast way for you to determine if a molecule is polar or nonpolar. It provides examples so you can quickly distinguish nonpolar molecules from those that are polar. 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 molecules that are classified as polar or nonpolar: N2, O2, Cl2, F2, H2 He, Ne, Ar, Xe CH4, C2H6, CH2=CH2, CF4, SBr6, BH3, CO2, PCl5, H2O, NH3, HF, CH3OH, CH3NH2, CH3COOH OCS, CH3F, SO2
Views: 586112 The Organic Chemistry Tutor
*** PLEASE WATCH WITH ANNOTATIONS ON! SOME INACCURACIES IN GRAPHICS ARE NOTED AND CORRECTED IN ANNOTATIONS. THANKS! *** Molecules come in infinite varieties, so in order to help the complicated chemical world make a little more sense, we classify and categorize them. One of the most important of those classifications is whether a molecule is polar or non-polar, which describes a kind of symmetry - not just of the molecule, but of the charge. In this edition of Crash Course Chemistry, Hank comes out for Team Polar, and describes why these molecules are so interesting to him. You'll learn that molecules need to have both charge asymmetry and geometric asymmetry to be polar, and that charge asymmetry is caused by a difference in electronegativities. You'll also learn how to notate a dipole moment (or charge separation) of a molecule, the physical mechanism behind like dissolves like, and why water is so dang good at fostering life on Earth. -- Table of Contents Charge Assymetry & Geometric Asymmetry 01:33 Difference in Electronegatives 01:49 Hank is Team Polar 00:33 Dipole Moment 03:49 Charge Separation of a Molecule 04:12 Like Dissolves Like 04:41 Water is Awesome 05:10 -- 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: 2355845 CrashCourse
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: 252896 Professor Dave Explains
This video looks at how to determine polarity in a molecule by understanding how the bond polarities, molecule shape, and outside atoms influence polarity using bond polarity vector addition. This includes a flow chart that guides you through the various decisions needed to determine if a molecule is polar or not. Wikipedia 1/1/2018: In chemistry, polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole or multipole moment. Polar molecules must contain polar bonds due to a difference in electronegativity between the bonded atoms. A polar molecule with two or more polar bonds must have a geometry which is asymmetric in at least one direction, so that the bond dipoles do not cancel each other. While the molecules can be described as "polar covalent", "nonpolar covalent", or "ionic", this is often a relative term, with one molecule simply being more polar or more nonpolar than another. However, the following properties are typical of such molecules. A molecule is composed of one or more chemical bonds between molecular orbitals of different atoms. A molecule may be polar either as a result of polar bonds due to differences in electronegativity as described above, or as a result of an asymmetric arrangement of nonpolar covalent bonds and non-bonding pairs of electrons known as a full molecular orbital. Polar molecules The water molecule is made up of oxygen and hydrogen, with respective electronegativities of 3.44 and 2.20. The dipoles from each of the two bonds (red arrows) add together to make the overall molecule polar. A polar molecule has a net dipole as a result of the opposing charges (i.e. having partial positive and partial negative charges) from polar bonds arranged asymmetrically. Water (H2O) is an example of a polar molecule since it has a slight positive charge on one side and a slight negative charge on the other. The dipoles do not cancel out resulting in a net dipole. Due to the polar nature of the water molecule itself, polar molecules are generally able to dissolve in water. Other examples include sugars (like sucrose), which have many polar oxygen–hydrogen (−OH) groups and are overall highly polar. If the bond dipole moments of the molecule do not cancel, the molecule is polar. For example, the water molecule (H2O) contains two polar O−H bonds in a bent (nonlinear) geometry. The bond dipole moments do not cancel, so that the molecule forms a molecular dipole with its negative pole at the oxygen and its positive pole midway between the two hydrogen atoms. In the figure each bond joins the central O atom with a negative charge (red) to an H atom with a positive charge (blue). The hydrogen fluoride, HF, molecule is polar by virtue of polar covalent bonds – in the covalent bond electrons are displaced toward the more electronegative fluorine atom. Ammonia, NH3, molecule the three N−H bonds have only a slight polarity (toward the more electronegative nitrogen atom). The molecule has two lone electrons in an orbital, that points towards the fourth apex of the approximate tetrahedron, (VSEPR). This orbital is not participating in covalent bonding; it is electron-rich, which results in a powerful dipole across the whole ammonia molecule. Resonance Lewis structures of the ozone molecule In ozone (O3) molecules, the two O−O bonds are nonpolar (there is no electronegativity difference between atoms of the same element). However, the distribution of other electrons is uneven – since the central atom has to share electrons with two other atoms, but each of the outer atoms has to share electrons with only one other atom, the central atom is more deprived of electrons than the others (the central atom has a formal charge of +1, while the outer atoms each have a formal charge of −1⁄2). Since the molecule has a bent geometry, the result is a dipole across the whole ozone molecule. When comparing a polar and nonpolar molecule with similar molar masses, the polar molecule in general has a higher boiling point, because the dipole–dipole interaction between polar molecules results in stronger intermolecular attractions. One common form of polar interaction is the hydrogen bond, which is also known as the H-bond. For example, water forms H-bonds and has a molar mass M = 18 and a boiling point of +100 °C, compared to nonpolar methane with M = 16 and a boiling point of –161 °C. Nonpolar molecules A molecule may be nonpolar either when there is an equal sharing of electrons between the two atoms of a diatomic molecule or because of the symmetrical arrangement of polar bonds in a more complex molecule. Not every molecule with polar bonds is a polar molecule. Carbon dioxide (CO2) has two polar C=O bonds, but the geometry of CO2 is linear so that the two bond dipole moments cancel and there is no net molecular dipole moment; the molecule is nonpolar.
Views: 146962 Crash Chemistry Academy
DeltaStep is a social initiative by graduates of IIM-Ahmedabad, IIM-Bangalore, IIT-Kharagpur, ISI-Kolkata, Columbia University (USA), NTU (Singapore) and other leading institutes. At DeltaStep, we understand that just like every child has a unique face, a unique fingerprint; he has a unique learning ability as well. Hence we have built an intelligent adaptive learning system that delivers a tailor-made learning solution and helps a student to learn at his own pace because when it comes to learning, one size does not fit all. Learn from 1000s of such interesting videos, practice from more than 1,00,000 questions, learn complex concepts through games, take timed tests, get detailed reports & in-depth analysis even via SMS and Whatsapp and many more amazing features. Class wise mapping available for all leading boards including ICSE and CBSE. Create your personal learning account. Register for FREE at www.deltastep.com.
Views: 69380 DeltaStep
Understanding the polarity of a molecule is critical to understanding how that molecule interacts with its surroundings. But to understand polarity, one must first understand how the bonds and geometry affect each other. It's a little tricky, but worth your time. CrashCourse Polar and Non-Polar: http://youtu.be/PVL24HAesnc Great UC Davis resource: http://tinyurl.com/jwbmf6p
Views: 10869 Guillotined Chemistry
This video discusses why SO2 is polar and SO3 is nonpolar. SO2 and SO3 are known as sulfur dioxide and sulfur trioxide respectively.
Views: 29772 The Organic Chemistry Tutor
I give just a brief look into the difference of a non-polar and polar covalent bonds. I also use an example for each. Do realize that I did not name off electron negativity values for every element but I do for the ones that I use. Also in the end I should had said a negative partial charge on oxygen and a partial positive charge on the hydrogen.
Views: 442 Kev Labs
CLEAR & SIMPLE - What is the difference between polar and nonpolar molecules? Check out this video on Molecular Polarity which makes this EASY. Polar and Non Polar Covalent Molecules - This video explains how to determine if a molecule is polar or non polar. I show you how, based on symmetry alone, a molecule can be determined to polar or non polar. Although I show you the shapes of the molecules, it is important for you to be able to classify the shapes according to the VSEPR Theory, so please learn your shapes. The degree of polarity can be determine to a certain extent by the differences in electronegativity, but I don't cover that in this video. Best wishes in learning.
Views: 197790 sciencepost
What do the deltas mean? What is electronegativity? How can a molecule contain polar bonds but be non-polar overall?
Views: 1545 ASFC Chemistry
Check out my NEW and IMPROVED video for POLAR MOLECULES http://youtu.be/uYtwU0uRK7o. Hey dudes, this video is for the average high school student. It is meant to represent what I cover in a typical 45 minute period, so my students can access it if they are absent. This lesson shows how to determine if a molecule is polar or nonpolar covalent. This is a very basic video and is only an intro (Part 1) to polar molecules for high school students. Mid winter I'll be making a part 2 for this topic, which integrates electronegativity. Yes, some molecules in the video are slightly polar based on electronegativity, but that will be discussed in the next video. Enjoy.
Views: 19129 sciencepost
This video discusses how to tell if a molecule / compound is polar or nonpolar. Here is a list of molecules that are considered. Subscribe: https://www.youtube.com/channel/UCEWpbFLzoYGPfuWUMFPSaoA?sub_confirmation=1 General Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&list=PL0o_zxa4K1BV-uX6wXQgyqZXvRd0tUUV0&index=3 Support: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/ Nonpolar Molecules: Diatomic Molecules: H2, N2, O2, Cl2, Br2, F2, I2 Hydrocarbons: CH4, C2H6, C3H8, C2H2, C2H4 Identical Outer Elements With No Lone Pair on Central Atom: Tetrahedral Molecular Geometry: SiBr4, CCl4, CF4, GeH4, CBr4, SiH4 Trigonal Bipyramidal Molecular Geometry: PCl5, PF5, AsF5, PBr5, SbCl5 Linear Molecular Geometry: CO2, CS2, BeH2, BeCl2, and BeF2 Trigonal Planar Molecular Geometry: BH3, AlCl3, AlBr3, AlF3, FeBr3 Octahedral Molecular Geometry: SeF6, SBr6, SF6, SeCl6, SI6, SeI6 Polar Molecules: Same Outer Element With an Assymetrical Lone Pair(s) Bent Molecular Geometry: H2S, H2O, H2Se, SF2, SCl2, SeBr2, SO2, SeO2 Trigonal Pyramidal Molecular Geometry: NH3, PH3, PBr3, PCl3, NF3 T-shaped Molecular Geometry: IF3, ClF3, BrF3, ICl3, BrCl3 Square Pyramidal Molecular Geometry: IF5, ClF5, BrF5, ICl5, BrCl5 SeeSaw Molecular Geometry: SF4, SeCl4, SBr4, SeI4 Exception: XeF4 Different Outer Elements: (Usually Polar) CH3F, CSO, BH2F
Views: 348958 The Organic Chemistry Tutor
This video discusses if the following molecules are polar or nonpolar: methyl chloride - CH3Cl, Dichloromethane - CH2Cl2, Trichloromethane - CHCl3, and Carbon Tetrachloride - CCl4. This video also provides the lewis structures of these molecules as well as their respective dipole moments. It explains why CH3Cl, CH2Cl2 and CHCl3 are polar but why CCl4 is nonpolar by drawing the dipole moment arrows to see which cancels and discussing the polarity of the C-H and C-Cl bond. This video also explains why some molecules are polar and why others are not due to an unequal distribution or sharing of electrons. Any time an object has a separation of charge, it is currently polar.
Views: 42144 The Organic Chemistry Tutor
This video discusses if CH2Cl2 is polar or nonpolar. CH2Cl2 is known as dichloromethane. It has a dipole moment of 1.60D. This video also provides the lewis structure of CH2Cl2 and discusses the bond polarity of the C-H and C-Cl using electronegativity values to determine if CH2Cl2 is polar or nonpolar.
Views: 58381 The Organic Chemistry Tutor
In this video I will show you how to tell if a bond is polar or non-polar. I have tried to make this explanation as simple as possible.
Views: 212118 The Complete Guide to Everything
Subscribe Now: http://www.youtube.com/subscription_center?add_user=ehoweducation Watch More: http://www.youtube.com/ehoweducation Polarity has to do with the distribution of electrons in a molecule. Distinguish between polar and nonpolar molecules with help from an experienced science professional in this free video clip. Expert: Michael Maidaa Contact: www.linkedin.com/pub/michael-maidaa/38/2b2/ Bio: Michael Maidaa graduated from USC Santa Barbara with a B.S in Biological Sciences. Filmmaker: bjorn wilde Series Description: Cells and DNA are some of the most complicated and fascinating things found in nature. Find out about the marvels of cells and DNA with help from an experienced science professional in this free video series.
Views: 40339 eHowEducation
If you look at the Lewis structure for H2O we can see that it is not a symmetrical molecule. However, to determine if H2O is polar we need to look at the molecular geometry or shape of the molecule. Polarity results from an unequal sharing of valence electrons. Because the H2O molecule is not symmetrical there is a region of unequal sharing. The Nitrogen atom is more electronegative and therefore the valence electrons are near them more often. This makes it more negative. The Hydrogen atoms at the bottom of the structure are then more positive. Therefore, H2O is a polar molecule.
Views: 32558 Wayne Breslyn
Learn the basics about the covalent bonding of water, when learning about covalent bonding within properties of matter. Water is made from one oxygen atom and two hydrogens. The oxygen has 6 electrons in its outer shell, but it really wants to have 8 to have a full shell. The hydrogens have one outer shell electron, but want to have two. The atoms share their electrons, forming covalent bonds. So all three atoms have full outer shells, and create a water molecule. Water has two covalent bonds. In water, the bonding electrons spend most of their time nearer the oxygen atom, because it is more ELECTRONEGATIVE. This means that it is electron withdrawing. As the negatively charged electrons are nearer the oxygen atom, the oxygen atom becomes a little bit negative itself, while the hydrogens become a little positive. This is called delta positive and delta negative. Water doesn’t just have any old covalent bonds; it has what we call POLAR COVALENT bonds and is a POLAR molecule. This is really important as it affects how water behaves and reacts with other elements. 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: 40789 FuseSchool - Global Education
General organic chemistry for NEET , JEE , XII & XI examination. #NEET #JEEmains #JEEadvance #examination #Chemistryvideo #hindivideo #Freeeducation #bestvideolecture #chemistryVideo #pradeepsharma Disclaimer - All the content are of fair use . Under various sections of law the content is copyrighted . An educational institution work for the benefit of society . Subscribe followings for regular updates - Facebook - https://www.facebook.com/pradeepsharma1010 Facebook page - https://www.facebook.com/PICSedusolutions/?ref=bookmarks website - https://chemistryvideolecture.com/ website - https://picsinstitute.com/ PICS INSTITUTE provides Class room programme for IIT-JEE | AIPMT | CBSE \ XI | XII . PICS INSTITUTE provides #Free education for the subject #Chemistry for #NTSE ,#NSTSE,#KVPY, #Science Olympiad and School exams etc. #Students can get exercise based upon this law by subscribing our you tube channel and sending request in comment section.
Views: 11533 Pradeep Sharma
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: 617438 Bozeman Science
Chemistry: What is a Covalent Bond? (Polar and Nonpolar) Covalent bonds are one of the 3 main types of intramolecular forces, along with ionic bonds and metallic bonds. Covalent bonds are the result of atoms sharing their valence electrons. Covalent bonds can be polar or nonpolar, depending on the electronegativies of the atoms involved in the bond. We show five examples of covalent bonds using Lewis dot structure notation: HF, CO2, H2, H2O and CCl4. You can click on the links below to jump to sections in the lesson: 0:28 Definition of a Covalent Bond 0:42 Example 1: HF (single covalent bond) 1:23 Example 2: CO2 (double covalent bond) 2:09 Nonpolar covalent bonds 2:20 Example 3: H2 2:43 Polar covalent bonds 2:48 Example 4: H2O 3:58 Example 5: CCl4 4:39 Pauling Bond Polarity Scale (Linus Pauling) 5:15 Do covalent bonds break apart in water? (electrolytes) Click to watch our video about ionic bonds: http://bit.ly/1UWsJRL Click to see our video about metallic bonds: http://bit.ly/1UoASiZ And here's our video comparing ionic and covalent bonds: http://bit.ly/1Nz4Kpy Intermolecular Forces: http://bit.ly/2xAnoMt ///////////////////////// Essential Chemistry Lessons help all year long: What is a Mole? Avogadro's Number: http://bit.ly/2laJh0S Molar Mass: http://bit.ly/2pNfg8L Scientific Notation: http://bit.ly/2cv6yTw Significant Figures: http://bit.ly/2b1g3aJ Unit Conversion 1: http://bit.ly/1YGOQgw Unit Conversion 2: http://bit.ly/1RGbwZ1 Periodic Table: http://bit.ly/2gmSWfe ///////////////////////// Our Periodic Table app is FREE in the Google Play store! http://goo.gl/yg9mAF Don't miss our other chemistry videos: https://www.youtube.com/watch?v=aQw9G... 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! ///////////////////////// To support more videos from Socratica, visit Socratica Patreon https://www.patreon.com/socratica http://bit.ly/29gJAyg Socratica Paypal https://www.paypal.me/socratica We also accept Bitcoin! :) Our address is: 1EttYyGwJmpy9bLY2UcmEqMJuBfaZ1HdG9 ///////////////////////// We recommend the following books: Brown and LeMay Chemistry: The Central Science 13th edition: http://amzn.to/2n5SXtB 14th edition: http://amzn.to/2mHk79f McGraw/Hill Chemistry by Chang & Goldsby http://amzn.to/2mO2khf Uncle Tungsten: Memories of a Chemical Boyhood by Oliver Sacks http://amzn.to/2nlaJp0 Napoleon's Buttons: How 17 Molecules Changed History http://amzn.to/2lJZzO3 ///////////////////////// 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. Kimberly taught AP Biology and Chemistry at an exclusive prep school for eight years. She is now the head writer and producer of Socratica Studios.
Views: 175225 Socratica
An example showing how to find whether or not each molecule has an overall molecular dipole moment (i.e., is polar or nonpolar). VSEPR and Molecular Geometry. General Chemistry
Views: 19714 Shawn Shields
In this live tutoring session I focused on electron geometry, molecular geometry & polarity. Enjoy! 💯 WOULD YOU LIKE ME TO BE YOUR CHEMISTRY TUTOR? SIGN UP HERE: http://bit.ly/melissatutor 📗 FREE CHEMISTRY SURVIVAL GUIDE https://sellfy.com/p/NbUf/ 🙋♀️🙋♂️GOT A QUESTION? ASK ME HERE http://bit.ly/AskMelissaMaribel 👉 SHOP MY STEP-BY-STEP CHEMISTRY NOTES👈 https://sellfy.com/melissamaribel Thermochemistry: https://sellfy.com/p/9zWI/ Acids and Bases: https://sellfy.com/p/Ta1z/ Naming Compounds and Acids: https://sellfy.com/p/Cpof/ Dimensional Analysis, Significant Figures, and Density: https://sellfy.com/p/6AnT/ Gas Laws: https://sellfy.com/p/De81/ Stoichiometry: https://sellfy.com/p/NObu/ Redox Reactions: https://sellfy.com/p/rQsZ/ Molarity: https://sellfy.com/p/2A3h/ Limiting Reactants: https://sellfy.com/p/J2oT/ Lewis Structures: https://sellfy.com/p/HjLq/ Kinetics: https://sellfy.com/p/iFSr/ 🧡SHOW YOUR SUPPORT ON PATREON https://www.patreon.com/melissamaribel 👍MELISSA'S FAVORITES ON AMAZON https://www.amazon.com/shop/chemistrywithmelissamaribel --OTHER RESOURCES TO HELP YOU GET THROUGH SCHOOL-- 🙌 This was my go-to homework help when I was in school. Chegg Study is one of my favorites. https://che.gg/melissamaribelstudy 📚 I made the mistake of buying all of my textbooks, I wish I had the option of renting them. Thankfully you do, with Chegg Textbook Rentals. https://che.gg/melissamaribelrentals 💰 If you bought a textbook and don’t want the hassle of selling it, Chegg can do the work for you, with Chegg Buyback. https://che.gg/melissamaribelbuyback 📝 QUICKSTUDY REFERENCE GUIDES 📕 CHEMISTRY BREAKDOWN AND REVIEW https://amzn.to/2t50xWx 📙 CHEMISTRY EQUATIONS AND ANSWERS https://amzn.to/2MPjC88 📘 CHEMISTRY TERMINOLOGY https://amzn.to/2t9cv1o DISCLAIMER: Some links in the description are affiliate links, which means that if you buy from those links, I’ll receive a small commission. This helps support the channel and allows me to continue making videos like this. Thanks for the support! 💁♀️ HI I'M MELISSA MARIBEL I help students pass Chemistry. I used to struggle with this subject, so when I finally graduated with a bachelor's degree in Chemistry, I became a tutor so that you wouldn't have to struggle like I did. I know that with the right help, YOU CAN LEARN ANYTHING! 👋 FOLLOW ME Instagram: https://www.instagram.com/hellomelissam/ Facebook: https://www.facebook.com/hellomelissam/ Twitter: https://twitter.com/hellomelissam
Views: 8119 Chemistry with Melissa Maribel
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: 1704919 CrashCourse
Donate here: http://www.aklectures.com/donate.php Website video link: http://www.aklectures.com/lecture/nonpolar-and-uncharged-polar-amino-acids Facebook link: https://www.facebook.com/aklectures Website link: http://www.aklectures.com
Views: 79914 AK LECTURES
This organic chemistry video tutorial explains how to determine which bond is more polar. It also explains how to rank the bonds from least polar to most polar. 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
Views: 19746 The Organic Chemistry Tutor
If you look at the Lewis structure for SO3 it appears to be a symmetrical molecule. However, to determine if SO3 is polar we need to look at the molecular geometry or shape of the molecule. Polarity results from an unequal sharing of valence electrons. In SO3 there is the sharing is equal. Therefore SO3 is a nonpolar molecule. Note, a small error. The lewis structure shows the bottom oxygen having a double bond and three lone pairs. This is not correct, it should only have two lone pairs. It doesn't change the polarity of SO3, but it's always good to be 100% accurate. SO3 Lewis Structure Explanation: http://www.youtube.com/watch?v=a-ppp5_qhZY
Views: 44174 Wayne Breslyn
Electronegativity differences in bonding using Pauling scale. Using differences in electronegativity to classify bonds as covalent, polar covalent, or ionic. Watch the next lesson: https://www.khanacademy.org/science/chemistry/chemical-bonds/types-chemical-bonds/v/metallic-nature-trends?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Missed the previous lesson? https://www.khanacademy.org/science/chemistry/chemical-bonds/types-chemical-bonds/v/electronegativity-trends?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: 645688 Khan Academy Organic Chemistry
To see all my Chemistry videos, check out http://socratic.org/chemistry How can you tell the difference between compounds that are ionic and molecular (also known as covalent)? It has to do with the elements that make them up: ionic compounds are made of metals and nonmetals, and molecular (or covalent) compounds are made of nonmetals. We'll learn how they bond differently: in covalent compounds, the atoms share electrons, and in ion compounds, atoms steal electrons and then opposite charges attract. Ionic and molecular (covalent) compounds also look different at the microscopic level: covalent and molecular compounds exist in molecules, while ionic compounds are organized in lattice structures.
Views: 697941 Tyler DeWitt
If you look at the Lewis structure for NH3 we can see that it is not a symmetrical molecule. However, to determine if NH3 is polar we need to look at the molecular geometry or shape of the molecule. Polarity results from an unequal sharing of valence electrons. Because the NH3 molecule is not symmetrical there is a region of unequal sharing. The Nitrogen atom is more electronegative and therefore the valence electrons are near them more often. This makes it more negative. The Hydrogen atoms at the bottom of the structure are then more positive. Therefore, NH3 is a polar molecule.
Views: 32681 Wayne Breslyn
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: 703489 Amoeba Sisters
How to predict if a compound dissolves in water. Practice identifying the hydrophobic and hydrophilic parts of a molecular structure. Missed the previous lesson? https://www.khanacademy.org/science/organic-chemistry/gen-chem-review/electronegativity-polarity/v/boiling-points-of-organic-compounds?utm_source=YT&utm_medium=Desc&utm_campaign=organicchemistry Organic Chemistry on Khan Academy: Carbon can form covalent bonds with itself and other elements to create a mind-boggling array of structures. In organic chemistry, we will learn about the reactions chemists use to synthesize crazy carbon based structures, as well as the analytical methods to characterize them. We will also think about how those reactions are occurring on a molecular level with reaction mechanisms. Simply put, organic chemistry is like building with molecular Legos. Let's make some beautiful organic molecules! 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 Organic Chemistry channel: https://www.youtube.com/channel/UCNKPjijOc0WEJ7DIV_Vay3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 141805 Khan Academy Organic Chemistry
This video shows you how to draw the lewis structure for BF3. It also discusses the molecular geometry of BF3 and answers the question: Is BF3 polar or nonpolar?
Views: 43871 The Organic Chemistry Tutor
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: 541251 Tyler DeWitt
Learn to determine if BH3 is polar or nonpolar based on the Lewis Structure and the molecular geometry (shape). We start with the Lewis Structure and then use VSEPR to determine the shape of the molecule. After that we’ll look at how the shape of the molecule, based on VSEPR, allows us to determine if the entire molecule is polar or nonpolar. If you look at the Lewis Structure for BH3 it appears to be a symmetrical molecule. However, to determine if BH3 is polar we consider the molecular geometry. A polar molecule results from an unequal/unsymmetrical sharing of valence electrons. While there may be unequal sharing of electrons in the individual bonds, in a nonpolar molecule like BH3 these bonds are evenly distributed and cancel out. There is no net dipole and the BH3 is non-polar. Get more chemistry help at http://www.thegeoexchange.org/chemistry/bonding/ Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo). Molecular Shapes done with PhET's free online website: https://phet.colorado.edu/sims/html/molecule-shapes/latest/molecule-shapes_en.html
Views: 2204 Wayne Breslyn