Moles

Welcome back!

Here's what we learned today:

1. A mole is a really big number: 6.02x10^23 things.
2. Moles are only really useful for counting very small things.
3. The atomic mass tells you the mass per mole of that atom.

Homework:

1. Do: read the chapter.
2. Watch: Mass
3. Do: WSQ-Mass