Six lessons cover this chapter, one for each section. Open any of them on its own below, or meet it in place inside chapter 3 of the book. Tick a lesson off once you can predict what it will do before you touch it.
1
The mole and Avogadro's number
Walk mass, moles and particles across the mole bridge.
2
3
4
Empirical and molecular formulas
Turn percent data into an empirical formula, then a molecular one.
5
6