For this class, there was a choice of what level to work at: on the Unit 4 page of this site, download the "soln stoich lesson" file, and if you struggled to understand stoichiometry then print out page 3; if you were OK with stoichiometry print page 1; if you want a challenge, print page 2. Go through the handout and use your text for reference as stated on the handout. Homework is also on the handout.