1. { Mole To Mole Ratios Los Altos Chemistry Mr. Darren Dressen

2. Today’s Warm UP Typical Recipe for Chocolate Chip Cookies 3 cups flour + 2 cups sugar + 2 eggs 4 dozen cookies Could you modify these ingredients to make a dozen cookies? What would you do? How would you modify recipe to make one cookie?

3. 1 CaSO 4 + 1 BaCl 2 1 CaCl 2 + 1 BaSO 4 __ CaSO 4 + __BaCl 2 __CaCl 2 + __BaSO 4 ____CaSO 4 + ____BaCl 2 ____ CaCl 2 + ____BaSO 4 10 0.5 5.65 x 10 -2

4. 2 H 2 + 1 O 2 2 H 2 O __ H 2 + __O 2 __H 2 O 4 2 4 5 0.064 __ H 2 + __O 2 __ H 2 O 5 2.5 0.064 0.032

5. ___C 4 H 10 + ____O 2 ____CO 2 + ____H 2 O 13 8 2 10 How many moles of butane, C 4 H 10, are needed to react with 5.5 moles of O 2 ? ___C 4 H 10 + ___O 2 ___CO 2 + ____H 2 O 5.5 X 5.5 moles of O 2 13 moles of O 2 2 moles of C 4 H 10 = 0.85 moles C 4 H 10

6. ___C 4 H 10 + ____O 2 ____CO 2 + ____H 2 O 13 8 2 10 How many moles of butane, C 4 H 10, are needed to react with 5.5 moles of O 2 ? ___C 4 H 10 + ___O 2 ___CO 2 + ____H 2 O 5.50.85 5.5 moles of O 2 13 moles of O 2 2 moles of C 4 H 10 = 0.85 moles C 4 H 10