Under what circumstances should Avogadro's number be used as a conversion factor in stoichiometry?

Avogadro's number is used when converting between moles and the number of atoms, molecules, particles, or formula units.

Mole Ratios in Reactions

11th Grade•45 minutes

I can use mole ratios to calculate the amount of reactants and products in a chemical reaction.

When converting from grams to moles or vice versa, we use molar mass as a conversion factor.

A mole ratio, which is found in the balanced equation, is used when you are changing your compound.

When you see the keywords atoms, molecules, particles, or formula units, you should use Avogadro's number as a conversion factor.

This lesson includes 9 practice questions to reinforce learning.

View questions preview

1. What are the three types of conversion factors used in stoichiometry, as mentioned in the video?

2. When should you use molar mass as a conversion factor in stoichiometry problems?

3. According to the video, how do you determine the mole ratio needed for stoichiometric calculations?

...and 6 more questions

Step by Step Stoichiometry Practice Problems | How to Pass Chemistry

Melissa Maribel