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CH 221—Ziegler Worksheet
Stoichiometry
- Suppose 32.0 g of methane, CH 4 is burned in air to give CO 2 and H 2 O.
a. How many moles and how many grams of CO 2 will be produced, theoretically?
b. What will be the theoretical yield in moles and in grams of H 2 O?
c. How many grams of O 2 will be consumed?
- When heated, barium peroxide BaO 2 , decomposes to give barium oxide, BaO, and molecular oxygen, O 2. Given 16.9 g BaO 2 :
a. How many grams of BaO will be produced theoretically?
b. What will be the theoretical yield, in grams, of O 2?
CH 221—Ziegler Worksheet
- Suppose 24.0 g of methane is reacted with 64.0 g of O 2 in the same reaction as in problem no 1 above.
a. Which is the limiting reagent?
b. Which reagent is present in excess?
c. How many grams of CO 2 will be produced, theoretically?
d. How many grams of O 2 will be left over?
e. How many grams of CH 4 will be left over?
f. Suppose a student recovers 33.0 g of CO 2 from this experiment. What percent yield will she report?
