Agenda for Oct 28, 2010

Do Now

Fe₂O₃ + 3CO --> 2Fe + 3CO₂

• In this reaction, how many grams of Fe₂O₃ are required to completely react with 84 grams of CO?
  
  1. 64 g
  2. 80 g
  3. 160 g
  4. 1400 g

Mole Problem

Using your knowledge of mole calculations and unit conversions, determine how many atoms there are in 1 gallon of gasoline. Assume that the molecular formula for gasoline is C₆H₁₄ and that the density of gasoline is approximately 0.85 g/mL [note: there are 3785 mL in one gallon.]

Mole Worksheet

• Work in groups on these problems. These can show up on quizzes.

Discussion of Chapter 10.3

• definitions
• understanding formulas

Homework

• read pp 305 - 313
• do problems #43,44 on pg 312; #63, 64 on pg 314