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# Links for the Seventh Chapter

## Extra Help For Chapter 7

This video explains what a mole is and how to use it in chemistry. It shows you how to calculate the number of moles in a sample as well as the number of atoms or molecules in a sample.

Here is another video that discusses the mole concept.

This video shows you how to convert between moles, grams, and molecules.

This is another video that shows you how to convert between moles, grams, and molecules.

This video shows you how to use stoichiometry to convert moles of one substance in a chemical equation to moles of another substance in the equation.

This video shows you how to use stoichiometry to convert grams of one substance in a chemical equation to moles of another substance in the equation.

This video shows you how to use stoichiometry to convert grams of one substance in a chemical equation to grams of another substance in the equation.

This is another video that shows you how to use stoichiometry to convert grams of one substance in a chemical equation to grams of another substance in the equation.

This is yet another video that shows you how to use stoichiometry to convert grams of one substance in a chemical equation to grams of another substance in the equation.

This is another video on basic stoichiometry.

This is still another video that shows you how to use stoichiometry to convert grams of one substance in a chemical equation to grams of another substance in the equation.

## Interesting Links Related to Chapter 7

This video is an interesting look at the Experiment 7.1.

This video shows an interesting application of stoichiometry.

## Extra Problems for Chapter 7

Extra problems for Chapter 7

This gives you more practice on the problems in chapter 7. Here are the solutions.