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Stoichiometry
It explains the concept of Stoichiometry, Concentration of Solution, Mole Fraction, Molality & Molarity.
Professor Dave Explains
The Mole: Avogadro's Number and Stoichiometry
Yes, I know moles are adorable furry creatures. This is a different kind of mole! A numerical mole. And we need to understand them to be able to make predictions about reactions. Let Professor Dave take you through the finer points.
FuseSchool
What Is Avogadro's Number - The Mole
Learn the basics about Avogadro's Number, as a part of chemical calculations. Avogadro’s Number or the Avogadro Constant is 6.02 X 1023 Mol-1. It is the number of atoms per mole of the carbon-12 isotope. For atoms, the mass of Avogadro’s...
Socratica
Chemistry: Molar Mass
Molar mass, gram molecular mass, and gram formula mass essentially mean the same thing. The brief video, part of the Socratica "Chemistry Lessons" playlist, explains how to solve these problems. It walks through the required tools,...
JFR Science
Calculating Empirical and Molecular Formula: What Is a Mass Spectrometer?
What's the formula for success? A unique and well-written resource from JFR Science explains empirical and molecular formulas. Young chemists learn the steps and skills required to determine the formulas from percent composition and...
JFR Science
Percent Composition
Everyone knows water is made of hydrogen and oxygen ... but how much of each? Science scholars explore percent composition through a video from JFR Science. The narrator provides background information, time-saving tips, and example...
Socratica
Molecular Formula
Looking for the formula for success in chemistry class? Socratica's lesson on Molecular Formula, from its Chemistry Lessons series, is the solution! The narrator guides learners through the differences between empirical and molecular...
Socratica
Chemistry: Percent Composition
How much oxygen is in water? Is it the same as the chemical formula? Learners observe the differences between a substance's formula and its percent composition with a video from Socratica's Chemistry Lessons series. The narrator...
Teacher's Pet
Atomic and Molar Mass
Teach the connection between isotopes and atomic mass. An engaging video demonstrates the calculation of the atomic mass of carbon when considering its isotopes. The instructor then shows the connection to molar mass.
Teacher's Pet
Stoichiometry
Moles, grams, particles, volume ... how do I keep them all straight? Help pupils sort out the terms and calculations used in stoichiometry with a video tutorial. Topics include mole ratios, molar mass, molar volume, and common...
Teacher's Pet
Percent Yield
How do chemists know if they've done a good job performing a reaction? They use the percent yield equation! Introduce the calculation that often determines success (or otherwise) in the lab with a short video. The narrator explains...
Teacher's Pet
Heat in Changes of State
Melting ice seems pretty easy, right? But what's actually happening is much more complex! Introduce the class to enthalpy calculations using a video tutorial. The narrator explains and performs the calculations that show the energy at...
Teacher's Pet
Molar Conversions
Start stoichiometry scholars off on the path to success with a short video. The narrator of this interesting video guides viewers through the concepts of the mole, molar mass, and Avogadro's number. Additional topics include converting...
Fuse School
Calculating Molar Volume Using Experimental Data
Calculating molar volume from experimental data often means the additional challenge of complex numbers and slight errors in measurement. The 23rd video in a 30-part series offers two types of experimental data to work from and models...
Fuse School
Calculating Percentage Mass
More than half of your body is made of water, but what percentage of you is made up of hydrogen? This video explains how to solve for percentage mass. It uses water as one example of solving for both hydrogen and oxygen.
Crash Course
Stoichiometry: Chemistry for Massive Creatures
Moles exist in chemistry? These are not animals that live underground and dig through your gardens — they are quantities of elements. Learn about moles and how they help chemists determine amounts of substances (from atomic mass to grams).
Berkeley University of California
Isotopes
Review carbon-12 with the final video in a 15-part series. The video first shows how to use mass spectrum results to determine the molar mass of carbon. It then determines the number of protons, neutrons, and electrons in carbon-12.
Get Chemistry Help
Chemistry Lesson: Molar Mass
Enhance your current chemistry curriculum with a short video that demonstrates how to calculate the molar mass of a compound. There is also instruction for conversion between moles and mass, outlined in simple steps and demonstrated in a...
Educreations
The Ideal Gas Law
Help young scientists connect the dots between pressure, temperature, and volume with a video on the ideal gas law. After first reviewing the formula for this fundamental law, the instructor walks step by step through nine different...
Khan Academy
Khan Academy: Ideal Gas Equation Example 1
Figure out the number of moles of gas we have using the ideal gas equation: PV=nRT. [10:08]
Khan Academy
Khan Academy: Ideal Gas Equation Example 4
Figure out the molar mass of a mystery molecule at STP. [5:04]
Khan Academy
Khan Academy: Solubility and Solubility Product Constant
Introduction to solubility and solubility constant with an example of solubility calculation. [11:45]
Khan Academy
Khan Academy: Chemistry: Ideal Gas Equation Example 4
Need some more examples of how to solve problems using the ideal gas law? Here is a video lecture that does just that! In this video, a problem is worked step-by-step to solve for the molar mass of an unknown molecule at STP. [5:03]
Sophia Learning
Sophia: Chemical Reactions Stoichiometry: Lesson 1
This lesson will demonstrate how to use a balanced chemical equation to determine the mass of a product given the starting mass of a reactant. It is 1 of 2 in the series titled "Chemical Reactions - Stoichiometry."