The Mole, Avogadro’s Number, and Counting by Mass (or Weight!)

This video introduces counting by mass, the mole, and how it relates to atomic mass units (AMU) and Avogadro’s number.

You can view the transcript for “The Mole, Avogadro’s Number, and Counting by Mass (or Weight!)” here (opens in new window).

The Mole and Avogadro’s Number

Introduction to the idea of a mole as a number (vs. an animal), and why moles are useful in chemistry calculations.

You can view the transcript for “The mole and Avogadro’s number | Atoms, compounds, and ions | Chemistry | Khan Academy” here (opens in new window).