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Empirical Formula & Molecular Formula Determination From Percent Composition
 
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This chemistry video tutorial explains how to find the empirical formula given the mass in grams or from the percent composition of each element in a compound. If you're given the mass percent, you can simply treat it as if you were given the mass in grams. This video explains how to find the molecular formula given the molar mass of the compound. You can do this once you have the empirical formula. This video explains all of it. It has plenty of practice problems and examples for you to master this lesson. 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
Determining Empirical and Molecular Formulas - Chemistry Tutorial
 
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This tutorial covers how to determine the empirical and molecular formulas of a compound from quantitative analyses and includes examples of how to calculate the empirical formula given the percent composition by mass of an unknown compound. https://www.thechemistrysolution.com
Views: 272188 TheChemistrySolution
Calculating Molecular Formula from Empirical Formula
 
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We'll learn how to calculate molecular formula for a compound when you are given its empirical formula and its molar mass. In order to do this, you need to figure out what to multiply the empirical formula by to get the molecular formula and the correct molar mass. The multiple can be determined by dividing the molar mass of the compound by the molar mass of the empirical formula.
Views: 726227 Tyler DeWitt
Writing Empirical Formulas From Percent Composition - Combustion Analysis Practice Problems
 
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This chemistry video tutorial shows you how to determine the empirical formula from percent composition by mass in grams. This video also shows you how to determine the molecular formula from the empirical formula using the combustion analysis technique of a compound. This video contains plenty of examples and practice problems that can help you on your next upcoming worksheet assignment / quiz. Here is a list of topics: 1. Empirical Formula - Lowest Whole Number Ratio 2. Finding the empirical formula from mass in grams 3. Determining the empirical formula using percent composition by mass 4. Calculating Molecular Formula From Empirical Formula Using Molar Mass 5. Combustion Analysis - Compound with 2 elements - Carbon & Hydrogen 6. Empirical Formula From Combustion Analysis - 3 Element Compound - Carbon, Oxygen, and Hydrogen 7. Decimal Ratio Subscripts & Fractions - Converting to whole numbers
Find the Empirical Formula Given Percents
 
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If you're given the Percent Composition of a compound, you can find the Empirical Formula for it. I have the shortest method ever to do it, although it's not a "full solution" like your teacher probably asks for. 1. Divide each % by the atomic mass of the element 2. Divide each of THOSE answers by whatever's smallest 3. Adjust these numbers into their lowest whole-number ratio. Check me out: http://www.chemistnate.com
Views: 588872 chemistNATE
Empirical Formula and Molecular Formula Introduction
 
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We will talk about what empirical formula and molecular formula are, how they are different, and we'll learn how to write the empirical formula for a compound when you are given the molecular formula. Molecular formulas tell you how many atoms of each element are in a compound, and empirical formulas tell you the simplest or most reduced ratio of elements in a compound. If a compound's molecular formula cannot be reduced any more, then the empirical formula is the same as the molecular formula. Also, many compounds with different molecular formula have the same empirical formula.
Views: 764605 Tyler DeWitt
Introduction to Combustion Analysis, Empirical Formula & Molecular Formula Problems
 
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This chemistry video tutorial explains how to find the empirical formula and molecular formula using combustion analysis. It explains how to calculate the number of moles of each element given the mass in grams of CO2 and H2O. Examples include compounds containing Carbon, Hydrogen, and Oxygen. This video contains plenty of practice problems 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
Calculating Molecular Formulas Step by Step | How to Pass Chemistry
 
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Become a master at finding molecular formulas! Not only will you learn the steps to get the answer but you will understand the concept of what a molecular formula is. This video, goes into simple steps of how to find a molecular formula of a compound so you never have to question "How do I do this again?" 📗 FREE CHEMISTRY SURVIVAL GUIDE https://sellfy.com/p/NbUf/ 👉 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/ 🧡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 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 ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Music by: Dj Quads - Rhythm (Non-Copyrighted Music) Soundcloud - https://soundcloud.com/aka-dj-quads Destination by MBB https://soundcloud.com/mbbofficial Creative Commons — Attribution-ShareAlike 3.0 Unported— CC BY-SA 3.0 http://creativecommons.org/licenses/b... Music promoted by Audio Library https://youtu.be/qRTHlDsH_yE ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Calculate Empirical Formula From Percent - Practice - 2
 
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What is the empirical formula of a compound with the following composition? 20.2 percent Al, 79.8 percent Cl Teachers Pay Teachers Practice Worksheets: Empirical Formulas 1.0 - https://www.teacherspayteachers.com/Product/Practice-Empirical-Formulas-10-4297763 Answer Key - https://www.teacherspayteachers.com/Product/Practice-Empirical-Formulas-Practice-10-Answer-Key-4297783 Empirical Formulas 2.0 - Answer Key - Video - How to Calculate Empirical Formulas from Mass or Percent Video - Calculate Empirical Formulas From Percent - Practice - 3 Playlist - Empirical Formulas Playlist - The Mole Question is credited to Chang Chemistry 9th Edition - 3.49.a
Empirical and Molecular Formula from Percent Composition (No. 1)
 
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Shows how to determine the empirical and molecular formulas for a compound if you are given the percent composition and the molecular weight. You can see a listing of all my videos at my website, http://www.stepbystepscience.com
Views: 173844 Step-by-Step Science
Empirical Formula - Complex Example 1
 
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Learn how to calculate an empirical formula when the answer is not a whole number.
Views: 335 designchemed
Determining the Empirical Formula and notes
 
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There is no sound for this video
Views: 7 MsDeFeliceTPS
How to Calculate Molar Mass Practice Problems
 
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We will learn how to calculate the molar mass of a compound by using its chemical formula. Molar mass is a quantity that is very similar to molecular mass, molecular weight, formula mass, and formula weight. In order to calculate molar mass, we look at the formula to determine how many atoms of each type are in it, and then look at the periodic table to determine the atomic mass of each of the atoms. We will look at compounds containing polyatomic ions, and also hydrate compounds.
Views: 722462 Tyler DeWitt
How to Calculate EMPIRICAL FORMULA Using 5 Simple Steps
 
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http://www.sciencetutorial4u.com Finding empirical formula with 5 simple steps. The steps are: 1) Write the atoms involved in the calculation. 2) Write the mass of the atoms. 3) Find the Mole of each atom by doing mass over relative atomic mass (you can find the Ar using the periodic table, Ar is the mass number). 4) Calculate the mole ratio, this is done by dividing each moles (from step 3) by the smaller mole. 5) Here you go, you got the empirical formula from the mass given. Thank you for watching. Please like, subscribe and share this video: https://youtu.be/lPLTLkn3dNU
Views: 106371 sciencetutorial4u
Calculate Empirical Formula From Percent - Practice - 1
 
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What is the empirical formula of a compound with the following composition? 2.1 percent H, 65.3 percent O, and 32.6 percent S Teachers Pay Teachers Practice Worksheets: Empirical Formulas 1.0 - https://www.teacherspayteachers.com/Product/Practice-Empirical-Formulas-10-4297763 Answer Key - https://www.teacherspayteachers.com/Product/Practice-Empirical-Formulas-Practice-10-Answer-Key-4297783 Empirical Formulas 2.0 - Answer Key - Video - How to Calculate Empirical Formulas from Mass or Percent Video - Calculate Empirical Formulas From Percent - Practice - 2 Playlist - Empirical Formulas Playlist - The Mole Question is credited to Chang Chemistry 9th Edition - 3.49.a
Percent Composition By Mass
 
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We'll learn how to calculate percent composition by mass, and we'll work through a number of practice problems. To calculate percent by mass, you need to determine two things: the mass of just the element, and the molar mass of the whole compound. Then, you take the molar mass of just the element and divide it by the molar mass of the whole compound, and multiply by 100%.
Views: 640791 Tyler DeWitt
Determining the Empirical Formula of Silver Oxide
 
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In this video, we recount how to determine the empirical formula of silver oxide by utilizing the Law of Conservation of Mass.
Views: 1362 bshsapchemlabs
Empirical Formula from Combustion Analysis (Example)
 
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Given the masses of carbon dioxide and water formed, and the initial mass of an unknown compound, determine its empirical formula. Made by faculty at the University of Colorado Boulder, Department of Chemical & Biological Engineering. Check out our Chemistry playlist: https://www.youtube.com/playlist?list=PL4xAk5aclnUi1CEFNwjcheMgyWe8BwuLS Check out our website for screencasts organized by popular textbooks: http://www.learncheme.com/screencasts/chemistry Empirical Formula from Combustion Analysis 2 (Review): http://youtu.be/tbMfvgu191Y
Views: 32885 LearnChemE
Empirical Formula by Combustion Analysis
 
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A sample problem walking you through how to calculate the empirical formula of a compound given the results of a combustion reaction.
Views: 48007 DrKsChemClasses
Lab calculations - empirical formula lab
 
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Lab calculations for determining the empirical formula of magnesium oxide
Views: 8227 Rachel Nixon
Chemistry Practice Problems: Determining Formula from Percent Composition
 
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https://getchemistryhelp.com/learn-chemistry-fast/ These practice problems demonstrate how to calculate the empirical formula and molecular formula from percent composition data. Download the accompanying PDF worksheet at http://www.getchemistryhelp.com/chemistry-practice-problems-determining-formula-from-percent-composition/.
Views: 4365 GetChemistryHelp
Writing Ionic Formulas: Introduction
 
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Here's how to write formulas for binary ionic compounds. We'll see how you have to balance the charges of the two ions so they cancel each other out.
Views: 2052836 Tyler DeWitt
Molecular and Empirical Forumlas from Percent Composition
 
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Molecular and Empirical Forumlas from Percent Composition. Example 2.9 from Kotz Chemistry book More free lessons at: http://www.khanacademy.org/video?v=_H009sTvYE0
Views: 265139 Khan Academy
Empirical and Molecular Formula from Percent Composition (No. 2)
 
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Shows how to determine the empirical and molecular formulas for a compound if you are given the percent composition and the molecular weight. You can see a listing of all my videos at my website, http://www.stepbystepscience.com
Views: 19714 Step-by-Step Science
Answer Key for Formative Quiz: Percent Commposition, Empirical Formula and Molecular Formula
 
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Answer Key for Formative Quiz: Percent Composition, Empirical Formulas and Molecular Formulas
Views: 235 100417647
Calculating Percent Composition and Empirical Formulas
 
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Calculating percent composition and empirical formulas with Mr. Causey as he discusses and demonstrates step by step how to find percent composition, empirical formulas and molecular formulas. http://www.yourCHEMcoach.com SUBSCRIBE for more chemistry videos: http://bit.ly/1jeutVl ABOUT MR. CAUSEY'S VIDEO ACADEMY Mr. Causey's Video Academy is an educational video series of short video lessons for chemistry, algebra and physics. You can get lessons on a variety of topics or homework helpers that show you how to solve certain problems. There are over 120 videos to choose from. CONTACT ME: [email protected] FOLLOW ME: http://www.twitter.com/#!/mrcausey http://www.twitter.com/#!/mr_causey http://pinterest.com/mistercausey/ http://www.facebook.com/profile.php?id=814523544 https://plus.google.com/u/0/111105504415887392612 RESOURCES Polyatomic Ion Cheat Sheet: http://bit.ly/14e2pbw Periodic Table: http://bit.ly/ptable9 RELATED VIDEOS: Find the Empirical Formula: http://www.youtube.com/watch?v=zDXaExMbfL8 Find the Percent Composition and Moles: https://www.youtube.com/watch?v=jXyj39WxPOo Stoichiometry: http://www.youtube.com/watch?v=JIw_BmFZdhI Percent by Mass: https://www.youtube.com/watch?v=ZyFCIcQyI48 It is important to know the composition of compounds when dealing with stoichiometry and chemical analysis. Percent composition also allows you to find the empirical formula and the true formula of a molecular compound.
Views: 112437 Mr. Causey
Percent Composition By Mass
 
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This chemistry video tutorial explains how to find the percent composition by mass of each element in a compound using a simple formula. You need to find the molar mass of the entire compound in order to calculate the mass percent of each element. This video contains plenty of examples and practice problems. 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
3. Experimental Determination of Empirical Formula of Magnesium Oxide - DATA COLLECTION
 
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Calcuate the empirical formula of magnesium oxide. The experiment can be improved - can you suggest how? Music: "twine and timber" by Russianhush on sound cloud Sound effect from half life (Valve) and mickmon from freesound.org
Views: 596 Richard Thornley
How To: Find Empirical Formula From A Combustion Reaction (Combustion Analysis)
 
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A video made by a student, for a student. Showing how to pull an empirical formula from a combustion reaction. Kansas University. Rock Chalk Jayhawk, KU!!!!!!!!! IGNORE: Stoichiometry. Biology. Chemistry. How to work practice problem. How to convert. moles to grams . grams to moles. how to. doing chemistry practice problems. science. how. to. do. science. intro college chemistry level. problems. molecular weight. neutrality. acid. base. calculations. molar. mole. molar unit. grams. weight. chemical. formula. empirical. molecular. science equations. easy problems worked. made easier. made easy. density. mass. volume. how to find them. finding density. finding volume. finding mass. how to find molarity. how to find molecular weight of anything! all chemistry equations keywords
Views: 82116 ScienceMade Easier
Empirical Formula vs Molecular Formula Calculations for the MCAT
 
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http://Leah4sci.com/reactions presents: Empirical Formula vs Molecular Formula Calculations for MCAT General Chemistry Tired of conflicting and confusing MCAT advice? Access My FREE guide for everything MCAT prep: http://mcatstrategyguide.com/guide In this video: [0:25] Introduction to Molecular Formula [2:14] Definition of Empirical Formula [5:09] Sample Amino Acid Problem [7:08] Sample Percent Mass Problem This video explains the definitions, similarities, and differences between an atom's empirical formula and its molecular formula. You will also see when the empirical and molecular formulas are the same, and a percent by mass example! Links & Resources Mentioned in this Video: Amino Acid Cheat Sheet: http://leah4sci.com/amino-acids-mcat-cheat-sheet-study-guide/ Catch the entire MCAT Stoichiometry and Reactions Video Tutorial Series along with the Stoichiometry Practice Quiz and Cheat Sheet on my website at http://leah4sci.com/reactions This series will help you master AAMC Content Category 4E! Need help crafting a custom MCAT study schedule that takes your personal life and background into consideration? The strategy bootcamp will help you do that and so much more. Details: http://leah4sci.com/strategybootcamp For more hands on help with every step of the progress from strategy/planning to content review and more, come join me in the MCAT Study Hall. Full details: http://join.mcatstudyhall.com Looking for one-on-one help reviewing questions, passages and full lengths? I offer private online MCAT tutoring. Details http://leah4sci.com/mcat-tutoring/ 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: 1665 Leah4sciMCAT
Mole Ratio Practice Problems
 
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To see all my Chemistry videos, check out http://socratic.org/chemistry Lots and lots and lots of practice problems with mole ratios. This is the first step in learning stoichiometry, for using a chemical equation to get mole ratios and using conversion factors and dimensional analysis on products and reactants.
Views: 1018585 Tyler DeWitt
1.2 Calculating empirical formula from combustion analysis
 
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This video covers how to calculate the empirical formula organic compound from combustion data.
Views: 4748 Mike Sugiyama Jones
Converting Between Moles, Atoms, and Molecules
 
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How many atoms in 5.5 moles? How many moles is 4.6 x 10^24 sulfur atoms? We'll solve problems like these, where we convert back and forth between moles and the number of atoms or molecules that we have. We'll be using both a common sense approach, and also a standard conversion factor method. We'll learn how to use a scientific calculation to do this math, and we'll see how to round our answers with scientific notation and significant figures.
Views: 1114570 Tyler DeWitt
Avogadro's Number, The Mole, Grams, Atoms, Molar Mass Calculations - Introduction
 
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This general chemistry video tutorial focuses on avogadro's number and how it's used to convert moles to atoms. This video also shows you how to calculate the molar mass of a compound and how to convert from grams to moles. This video contains plenty of examples, notes, and practice problems that you help you complete your next worksheet assignment. Stoichiometry Practice Test: https://www.youtube.com/watch?v=9fSiy7-JurA Solution Stoichiometry: https://www.youtube.com/watch?v=Ab3wfKjaWWQ Intro To Physics: https://www.youtube.com/watch?v=WL5_T-g3Fxw Epic Music Mix: https://www.youtube.com/watch?v=qeljbZhx9bY&t=214s 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 Here is a list of topics: 1. Avogadro's Number and The Mole 2. Converting Moles to Atoms, Molecules, and Formula Units 3. Atoms to Moles Conversion 4. Molar Mass Calculations - g/mol 5. Grams to Moles and Moles to Grams Dimensional Analysis 6. Grams to Atoms Stoichiometry
AP Chemistry: Calculating an Empirical Formula
 
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Watch more at http://www.educator.com/chemistry/goldwhite/ Other subjects include Algebra, Geometry, Pre-Algebra, Geometry, Trigonometry, Calculus, Biology, Statistics, Physics, and Computer Science. -All lectures are broken down by individual topics -No more wasted time -Just search and jump directly to the answer
Views: 133790 Educator.com
How To Speak Chemistrian: Crash Course Chemistry #11
 
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Learning to talk about chemistry can be like learning a foreign language, but Hank is here to help with some straightforward and simple rules to help you learn to speak Chemistrian like a native. Table of Contents Determining Formulas and Names of Monatomic Ions 2:06 Finding Cation-and Anion Forming Elements on the Periodic Table 3:29 Writing Formulas and Naming Transition Metals 4:02 Naming Acids and their Anions 5:35 Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1076010 CrashCourse
Writing Ionic Formulas - Basic Introduction
 
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This chemistry video tutorial provides an introduction to writing the formula of an ionic compound that contains transition metals with roman numerals and polyatomic ions. This video contains plenty of examples and practice problems that you can help you with your next worksheet assignment. Here is a list of topics: 1. Writing Formulas For Ionic Compounds - Same Charged Ions 2. Monoatomic vs Polyatomic Ions List 3. Charges of Common Monoatomic Ions Based On Group Number In the Periodic Table of Elements 4. Transition Metals and Roman Numeral System List of Examples and Chemical Formulas: Sodium Chloride, Calcium Sulfide, Aluminum Nitride, Lithium Oxide, Gallium Bromide, Magnesium Phosphite, Potassium Sulfate, Strontium Phosphate, Barium Nitrate, Iron (II) Sulfide, Copper (II) Nitrite, Copper (I) Phosphite, Vanadium (V) Dichromate, and Leav (IV) Oxide.
Writing Formulas with Polyatomic Ions
 
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To see all my Chemistry videos, check out http://socratic.org/chemistry Here's how to write formulas for ionic compounds that contain polyatomic ions. In order to write formulas for polyatomic ions, you have to look at a chart or table of polyatomic ions to find out what the charge of each one is. Then, you figure out how many other ions will be necessary to balance out the charges and make it neutral.
Views: 1224124 Tyler DeWitt
Stoichiometry - Limiting & Excess Reactant, Theoretical & Percent Yield - Chemistry
 
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This chemistry video tutorial shows you how to identify the limiting reagent and excess reactant. It shows you how to perform stoichiometric calculations and how to calculate percent yield. This video contains plenty of examples and practice problems with answers / solutions to help you complete your next worksheet assignment or help you pass your next chemistry test / exam. Here is a list of topics: 1. Identifying the limiting and excess reactant - moles per coefficient ratio 2. Calculating the theoretical yield 3. Percent Yield Formula / Equation 4. Determining The Actual Yield of a Product 5. Balancing Combustion Reactions - Using the Mole Ratio 6. Stoichiometry - Mole to Mole and Gram to Gram Conversions 7. How To Calculate the amount of Excess Reactant that is left over 8. Using Theoretical Yield To Identify The Limiting Reagent
Combustion Analysis
 
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How to determine the empirical formula of a compound containing carbon and hydrogen using combustion analysis. The empirical formulas of compounds containing carbon, hydrogen, and oxygen can also be determined by combustion analysis.
Views: 130523 Ben's Chem Videos
Determining empirical and molecular formula IB Chemistry Past Paper Exam Q 2016 Specimen P2SLQ4bi ii
 
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How to determine empirical and molecular formula IB Chemistry Past Paper Exam Qs 2016 Specimen P2 SL Q4bi ii To determine the empirical formula the most important trick is to turn the percentage compositions straight to mass by assuming you have 100g of sample. Then just calculate the number of moles using n=m/M, place these mole values into a chemical formula and then divide by the smallest number and times out to get whole numbers. The molecular formula will be a whole number multiple of this (x1, x2, or x3 etc...). Use the given molecular mass to determine what whole number multiple of the empirical formula makes the molecular formula. Calculations template can be downloaded here: http://www.mrwengibchemistry.com/ib-chemistry-exams.html PPTs and quizzes are available on: http://www.mrwengibchemistry.com/ 2016 IB Chemistry EXAM Past paper 1 SL Specimen: https://www.youtube.com/playlist?list=PLyuGdIuwJD9HyN7bwQalRK7DF_cnLcnLA 2016 IB Chemistry EXAM Past paper 1 HL Specimen: https://www.youtube.com/playlist?list=PLyuGdIuwJD9EKe4KqHNjymhVqCQfe3EU6 2016 IB Chemistry EXAM Past paper 2 SL Specimen: https://www.youtube.com/playlist?list=PLyuGdIuwJD9HFIBGI_SgolsdTe3LOdI0G 2016 IB Chemistry EXAM Past paper 2 HL Specimen: https://www.youtube.com/playlist?list=PLyuGdIuwJD9E5ken_rYSs8iqM6cU2xTSu 2016 IB Chemistry EXAM Past paper 3 SL Specimen Option A&B: https://www.youtube.com/playlist?list=PLyuGdIuwJD9H6kLiuLuGK1kLMA2aPbNJt 2016 IB Chemistry EXAM Past paper 3 HL Specimen Option A&B: https://www.youtube.com/playlist?list=PLyuGdIuwJD9F4OFCb-azbeyvJRgaTtuZW Connect with me: Facebook: https://www.facebook.com/IBChemistry2016/ Twitter: https://twitter.com/andrewweng0406 Google plus: https://plus.google.com/u/0/108611113268141564345 Pinterest: https://www.pinterest.com/mrandrewweng040/ib-chemistry/ Weibo: http://www.weibo.com/5984983999/profile?topnav=1&wvr=6&is_all=1
Views: 2490 Andrew Weng
Density Practice Problems
 
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To see all my Chemistry videos, check out http://socratic.org/chemistry We'll practice solving density example problems. We'll look at how to use the density number like a conversion factor, to solve for mass or volume. Watch this video after the density introduction or before the more complicated video on density exercises that has unit conversion.
Views: 587023 Tyler DeWitt
Converting Between Grams and Moles
 
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We'll learn how to convert back and forth between grams and moles. For each example, we'll do it two ways. First, a thinking through it approach, that shows how you multiply moles by the molar mass to convert from moles to grams, and how you divide grams by the molar mass to convert from grams to moles. Second, we'll use a conversion factor method where we write units based on molar mass information, and set up fractions to correctly cancel the units. For part two, check out the video http://youtu.be/0RXB8xNmJNM
Views: 1212645 Tyler DeWitt
Introduction to Limiting Reactant and Excess Reactant
 
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Limiting reactant is also called limiting reagent. The limiting reactant or limiting reagent is the first reactant to get used up in a chemical reaction. Once the limiting reactant or limiting reagent gets used up, the reaction has to stop and cannot continue. After the limiting reactant or limiting reagent is used up and the reaction stops, there is extra of the other reactants left over. Those are called the excess reactants. In this video, we'll first learn about limiting reactant and limiting reagent by comparing chemical reactions to cooking recipes. We'll look at how to calculate limiting reactant and limiting reagent using cooking ingredients, and then looking at an actual stoichiometry problem,
Views: 1062905 Tyler DeWitt
Balancing Chemical Equations Practice Problems
 
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Equation balancing will make sense! Here, we will do a bunch of practice problems for balancing chemical equations. We'll see the process or trial and error and the steps that you have to go through to balance chemical equations. You start by keeping track of the number of atoms on both sides of the equation, and then you add coefficients to one or more of the elements and compounds to make the number of atoms equal.
Views: 1777005 Tyler DeWitt
Mass Percentage Empirical Formula | Basic concepts of chemistry | Chemistry | IIT JEE | Class 11
 
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Class 11 Chemistry - Some basic concepts of chemistry To get full access, visit: http://www.avanti.in/gurukul Topic 2: Relating Mass and Moles In this topic, we are going to cover: 1. Relation between number of moles and mass of a substance 2. Empirical formula and molecular formula of a substance 3. Mass percentage of any species in a compound Avanti Gurukul- Learn more about us at http://www.avanti.in Like us on Facebook @ https://www.facebook.com/avantilearningcentres/?fref=ts Follow us on Twitter @ https://twitter.com/AvantiLC
Views: 52034 Avanti Gurukul
Naming Acids Introduction
 
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How do you name acids? We'll learn how to look at the chemical formula for an acid and then write its name. We will focus on both acids without oxygen and also acids that contain oxygen, which are sometimes called oxoacids. In order to name an acid, you need separate the H+ from the negative ion. Then you figure out the name of the negative ion, and use rules for acid compound naming. If the negative ion ends in -ide, the acid is hydro- -ic acid. If the negative ion ends in -ate, the acid is -ic acid. If the negative ion ends in -ite, the acid is -ous acid. It's also important to note that there are some exceptions: phosphoric acid, phosphorous acid, sulfuric acid and sulfurous acid.
Views: 701669 Tyler DeWitt