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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
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: 691255 Tyler DeWitt
Lab: The Empirical Formula of Magnesium Oxide
 
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Here we use gravimetric analysis to determine the empirical formula of magnesium oxide.
Views: 51237 dchummer
Gas Density and Molar Mass Formula, Examples, and Practice Problems
 
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This gas density chemistry video tutorial provides the formula and equations for the calculation of the molar mass of a gas and it's density. The gas density formula is derived from the ideal gas law equation. This video contains a worksheet of examples and practice problems for you to work on especially if you need help with mastering chemistry. The answers / solutions are provided in the video tutorial as well. Here is a list of topics: 1. How To Calculate Gas Density of Nitrogen gas at STP Using Dimensional Analysis - 1 mole of gas = 22.4 Liters - Molar Volume 2. Gas Density Formula using Ideal Gas Law Equation PV=nRT 3. Units of density - g/L 4. How To Find The Molar Mass of a Gas Given The Mass in Grams 5. Calculating Molar Mass Using Gas Density at STP 6. How To Determine The Molar Mass of a Gas Given Density at Non standard temperature and pressure conditions
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: 831664 Tyler DeWitt
Calculating Formulas of Hydrate Compounds
 
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The following video is on calculating formulas of Hydrate compounds. For more science and math podcasts search Papapodcasts in iTunes
Views: 65352 Papapodcasts
Empirical Formula Lab Conclusion -- Magnesium Oxide
 
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calculations and conclusions on finishing the empirical formula lab.
Views: 11378 turdfurg67
Percent Composition of a Hydrate Lab
 
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Copper suifate pentahydrate is used to determine the percent composition of water in a lab. Hydrated and anhydrous are discussed along with percent error.
Views: 4208 Cheri Faley
How to Calculate Percent Composition from Experimental Data
 
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This video provides a discussion of how to calculate percent composition from mass data.
Views: 13606 Noel Pauller
Lab calculations - empirical formula lab
 
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Lab calculations for determining the empirical formula of magnesium oxide
Views: 8547 Rachel Nixon
Percentage Composition of H2O in CuSO4 · 5H2O
 
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To find the percent composition (by mass) for H2O in CuSO4 · 5H2O we need to determine the molar mass for the part (the 5H2O) and for the entire CuSO4 · 5H2O. We’ll use the following formula for percent composition by mass: Percent Composition by Mass = (Molar Mass Part x / Molar Mass of Whole Compound) x 100 In this video I’m using a Periodic Table that rounds to two decimal places. You may be asked to use a Periodic Table with more decimal places, however the process to find the percent composition by mass is the same. Molar Mass of H2O: https://youtu.be/4faZrgOScAs Molar Mass of CuSO4 · 5H2O: https://youtu.be/JrXP_hTID3c Molar Mass in Three Easy Steps: https://youtu.be/o3MMBO8WxjY CuSO4 Image: By Stephanb [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], from Wikimedia Commons CuSO4 anhydrous: By W. Oelen (http://woelen.homescience.net/science/index.html) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
Views: 3165 Wayne Breslyn
Percent Composition of Hydrates Chemistry Lab
 
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JCHS Regular/ Honors Chemistry lab walk through
Views: 5113 Madison City Schools
How to Find the Percent Composition by Mass for MgO (Magnesium oxide)
 
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To find the percent composition (by mass) for each element in MgO we need to determine the molar mass for each element and for the entire MgO compound. We’ll use the following formula for percent composition by mass: Percent Composition by Mass = (Molar Mass of Element x Number of that Element)/ Molar Mass of Compound In this video I’m using a Periodic Table that rounds to two decimal places. You may be asked to use a Periodic Table with more decimal places, however the process to find the percent composition by mass is the same. Molar Mass in Three Easy Steps: https://youtu.be/o3MMBO8WxjY Note: MgO is also known as Magnesium oxide.
Views: 1130 Wayne Breslyn
Calculating the Percent Water in a Hydrate - Mr Pauller
 
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This video demonstrates how to calculate the percent water in copper (II) sulfate pentahydrate by analysis of its chemical formula. Other Stoichiometry videos: Sandwich Stoichiometry - https://goo.gl/Cq3AKx Calculating Empirical Formulas - https://goo.gl/1GBQJB Calculating % Water of a Hydrate - https://goo.gl/hbTfYZ Empirical Formula of a Hydrocarbon - https://goo.gl/PxS2KK Formula Units of Magnesium Chloride - https://goo.gl/dMYkA8
Views: 39324 Noel Pauller
Empirical Formula Experiment - copper chloride hydrate
 
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The empirical formula of a copper chloride hydrate is determined. First the water molecules are removed through heating and the crystals change color from blue to brown. Next the copper is removed by a displacement reaction with aluminum and the copper metal is separated by filtration, washing and drying.
Views: 15182 Scott Milam
How to Calculate Percent Composition by Mass of Compounds and Molecules
 
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In this video we will learn how to calculate the percent composition by mass of elements in a compound/molecule.
Views: 2438 Chem Academy
Percent Composition from Formulas - Chemistry Tutorial
 
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https://www.thechemistrysolution.com This tutorial covers how to determine the percent composition by mass of particular elements within a compounds, and includes several practice examples of this process.
Views: 21506 TheChemistrySolution
How to Calculate Mass Percent of a Solution
 
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In this video we will discuss solution composition. More specifically we will discuss one way of looking at solution composition called mass percent. We will also work out a few examples using the mass percent formula.
Views: 78521 Chem Academy
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: 774222 Tyler DeWitt
Determining the Formula of a Hydrate | Melanie Fine of Chem in 10
 
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Get your free Ultimate Chemistry Cheat Sheet here: https://www.chemin10.com/optin?ims=lekwc&utm_source=YT+Percent+Composition Determining the Formula of a Hydrate | Melanie Fine of Chem in 10 A hydrate is a compound that contains a certain percentage of bound water. Often you will be asked to determine the formula of a hydrate, which is really about determining the amount of bound water in the hydrate. Just follow these steps.  1. Determine the amount of water driven off after the hydrate is heated. 2. Convert the mass of the anhydrate, the compound after the water is driven off, to moles by dividing by its molar mass. 3. Convert the mass of water driven off to moles by dividing by the molar mass of water. 4. Divide by small, which means divide each of these two numbers by the smallest of the two. The answer will give you the ratio of the anhydrate to the water.  And that is how you go about determining the formula of a hydrate. Get more chemistry help at Chem in 10, and your own copy of the book "Solving Mole Problems." http://chemin10.com/stoichgift
Views: 4120 CheminTen
Chemistry Lab - Determination of a Chemical Formula
 
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Shot by Paul J. Ramsey, Media Resources, Eastern Kentucky University.
Views: 6499 Paul Ramsey
Percent Composition of Glucose: How to Calculate the Percent Composition of Glucose
 
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Get your free Ultimate Chemistry Cheat Sheet here: https://www.chemin10.com/optin?ims=lekwc&utm_source=YT+Percent+Composition The percent composition of each element in glucose is found by taking the molar mass that each element contributes to the molar mass of glucose, and dividing that mass by the molar mass of an entire mole of glucose, and then multiplying by 100.
Views: 4299 CheminTen
Molar Mass By Freezing Point Depression - Molality & Van't Hoff Factor - Chemistry Problems
 
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This chemistry video tutorial explains how to determine the molar mass of a solute by freezing point depression. You need to use the difference in the temperature of the solvent and the temperature of the solution as well as the van't hoff factor to calculate the molality. Using the molality, you need to calculate the moles of solute in the solute. The Molar mass is the ratio between the mass in grams and the number of moles of solute. 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/
How to Find the Percent Composition by Mass for NH3  (Ammonia)
 
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To find the percent composition (by mass) for each element in NH3 we need to determine the molar mass for each element and for the entire NH3 compound. We’ll use the following formula for percent composition by mass: Percent Composition by Mass = (Molar Mass of Element x Number of that Element)/ Molar Mass of Compound In this video I’m using a Periodic Table that rounds to two decimal places. You may be asked to use a Periodic Table with more decimal places, however the process to find the percent composition by mass is the same. Molar Mass in Three Easy Steps: https://youtu.be/o3MMBO8WxjY Note: NH3 is also known as Ammonia.
Views: 682 Wayne Breslyn
How To Calculate Theoretical Yield and Percent Yield
 
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This video shows you how to calculate the theoretical and percent yield in chemistry. The theoretical yield is the maximum amount of product that can be produced in a reaction. The percent yield is equal to the actual yield divided by the theoretical yield times 100%. Subscribe: https://www.youtube.com/channel/UCEWpbFLzoYGPfuWUMFPSaoA?sub_confirmation=1 General Chemistry 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/
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: 1316778 Tyler DeWitt
Lab #1: Percent Composition
 
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Learning how to make pure Magnesium Oxide
Views: 433 Kiana Leong
Calculating Percent Water in a Hydrate
 
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Learn how to calculate the percentage of a hydrate that is water.
Views: 73357 CAYERCHEM
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: 269323 Khan Academy
Calculating the % composition of a hydrate
 
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This video covers how to calculate the percentage composition of a hydrate
Views: 7663 David Spence
Chemistry Lesson: Percent Composition
 
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https://getchemistryhelp.com/learn-chemistry-fast/ This lesson demonstrates how to determine the percent composition of a compound by calculating the total mass of each element and comparing it to the total molar mass of the compound.
Views: 35536 GetChemistryHelp
Determining the Formula of a Hydrate from percent compositions
 
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Using percent composition to find the formula of a hydrate
Views: 1251 FroelichFlip
Empirical Formula of a Hydrate
 
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Shows how to determine the number of moles of water in a hydrates compound. You can see a listing of all my videos at my website, http://www.stepbystepscience.com
Views: 46259 Step-by-Step Science
Molarity Practice Problems
 
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Confused about molarity? Don't be! Here, we'll do practice problems with molarity, calculating the moles and liters to find the molar concentration. We'll also have to use conversion factors to convert between grams and moles, and between milliliters and liters.
Views: 1066574 Tyler DeWitt
Percent Compostion of Magnesium Oxide Part 1
 
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Magnesium reacts with oxygen in the air to form magnesium oxide. Given the mass of magnesium and oxygen it is possible to calculate the percent magnesium in magnesium oxide as well as the percent oxygen in magnesium oxide.
Views: 12551 mrstinechemistry
Ch 8.7-molar mass of hydrate
 
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How to calculate the molar mass of a hydrate in preparation for the percent composition of copper in copper II sulfate lab.
Views: 99 John Allen
AChem - Lab - Empirical Formula of a Hydrate
 
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Prelab video to help Academic Chemistry students at Wyomissing Area Jr./Sr. High School, Wyomissing, PA.
Views: 6631 Michelle Filippini
Pre-Lab Concentration of Acetic Acid in Vinegar
 
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This video screencast was created with Doceri on an iPad. Doceri is free in the iTunes app store. Learn more at http://www.doceri.com
Views: 12040 Jaimie Graham
Hydrate lab calculations
 
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hydrate lab
Views: 33259 John Bennett
Hydrate Molar Mass
 
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Let's find out how to determine the molar mass of a hydrated ionic compound!! :)
Views: 860 ChemFTW 1
Molarity Dilution Problems Solution Stoichiometry Grams, Moles, Liters Volume Calculations Chemistry
 
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This chemistry video tutorial focuses on molarity and dilution problems. It shows you how to convert between molarity, grams, moles, and liters. It's very useful for students learning solution stoichiometry. This video contains plenty of notes, examples, equations / formulas and practice problems. Here is a list of topics: 1. How to calculate the Molarity of the solution given grams, moles, volume in ml or liters. 2. Determining the mass given the concentration in molarity and the volume in milliliters. 3. Using unit conversion / dimensional analysis to calculate the volume of the solution in mL. 4. Solute, Solvent, Solution Relationship 5. How to increase and decrease the concentration of a solution by adding water or removing water through dilution or evaporation. 6. Molarity and Dilution Problems - M1V1=M2V2 7. Solution Stoichiometry - Actual Yield, Theoretical Yield, and Percent Yield 8. Molarity Stoichiometry - Limiting and Excess Reactant 9. How To Find The Amount of Excess Reactant Remaining / Left Over in Volume in mL, Mass in grams, and moles 10. Single Replacement Reactions - Metal and Halide Displacement - Activity Series 11. Predicting the products of a double replacement reaction - acid base neutralization and precipitation reactions 12. How to calculate the maximum amount of product / theoretical yield given molarity, volume, and grams of the reactants 13. Basic Dilution Calculations 14. Using the Dilution Formula / Equation M1V1=M2V2 to solve acid base titration problems and redox reaction titrations 15. Mixture Problems - Finding the Molarity after mixing two or more solutions
Empirical and Molecular Formulas from Mass Composition (No. 2)
 
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Shows how to determine the empirical and molecular formulas for a compound if you are given the mass of each element in the compound and the molecular weight. You can see a listing of all my videos at my website, http://www.stepbystepscience.com
Views: 2853 Step-by-Step Science
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
Hydrate Video Lab
 
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Please watch and comment on my video lab I created. I am trying to get an idea of how I could use video labs with my chemistry course or website. I guess this would be good for students who are out of school for long periods of time, schools without chemicals, lessons when a teacher is out or something else. Please let me know what you think. About the experiment This experiment is intended to introduce students to hydrated compounds. These compounds have water molecules coordinated in their chemical structures. Examples CuSO4*5H2O, BaCl2*2H2O, and NaC2H3O2*3H2O. Notice each formula has a "*" between the compound's formula and the number of water molecules that are coordinated in the structure. the "*" represents a weak chemical bond known as a hydration bond. This bond is usually easily broken by heating the compound.
Views: 50326 kentchemistry.com
The mole and Avogadro's number | Atoms, compounds, and ions | Chemistry | Khan Academy
 
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Introduction to the idea of a mole as a number (vs. an animal). Watch the next lesson: https://www.khanacademy.org/science/chemistry/atomic-structure-and-properties/introduction-to-compounds/v/empirical-molecular-and-structural-formulas?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Missed the previous lesson? https://www.khanacademy.org/science/chemistry/atomic-structure-and-properties/introduction-to-the-atom/v/atomic-mass?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 is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. 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: 2263002 Khan Academy
Molecular mass and molecular weight | Chemistry | Khan Academy
 
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Calculating the molecular mass and molecular weight of water. Watch the next lesson: https://www.khanacademy.org/science/chemistry/atomic-structure-and-properties/introduction-to-compounds/v/common-polyatomic-ions?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Missed the previous lesson? https://www.khanacademy.org/science/chemistry/atomic-structure-and-properties/introduction-to-compounds/v/empirical-molecular-and-structural-formulas?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: 353342 Khan Academy
Viscosity Measurement using Ostwald's Viscometer - Amrita University
 
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▶ This video channel is developed by Amrita University's CREATE http://www.amrita.edu/create ▶ Subscribe @ https://www.youtube.com/user/amritacreate http://www.youtube.com/amritavlab ▶ Like us @ https://www.facebook.com/CREATEatAmrita ▶ For more Information @ http://vlab.amrita.edu/index.php?sub=2&brch=190&sim=339&cnt=1 ▶ Amrita Virtual Lab Project website http://vlab.amrita.edu Ostwald's viscometer is a traditional viscometer to measure the viscosity of a liquid. It is a U-shaped glass tube. In one arm, the bulb A is connected with a fine capillary. The lower end of capillary is connected with a U-tube provided with a bulb B in the second arm. The bulb is necessary to maintain the hydrostatic pressure during flow of liquid. Through the capillary tube, the liquid flows with measurable speed. There are two marks C and D above and below the bulb A. The liquid flows under its own weight.
Views: 339506 Amrita Vlab

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