# Percent-Yield

Document Sample

```					Percent Yield

1. When potassium chromate (K2CrO4) is added to a solution containing 0.500 g
silver nitrate (AgNO3), solid silver chromate (Ag2CrO4) is formed.

K2CrO4 + AgNO3 → Ag2CrO4

a. Determine the theoretical yield of the silver chromate precipitate.
b. If 0.455 g of silver chromate is obtained, calculate the percent yield.

2. CH4 + 2O2 → CO2 + 2H2O
a. Determine the percent yield if 10.0 g of methane is burned producing
19.5 g of water.

a. theoretical yield = 0.488 g Ag2CrO4
b. percent yield = 93.2%

#2:
86.7 % yield
Percent Yield

3. When potassium chromate (K2CrO4) is added to a solution containing 0.500 g
silver nitrate (AgNO3), solid silver chromate (Ag2CrO4) is formed.

K2CrO4 + AgNO3 → Ag2CrO4

a. Determine the theoretical yield of the silver chromate precipitate.
b. If 0.455 g of silver chromate is obtained, calculate the percent yield.

4. CH4 + 2O2 → CO2 + 2H2O
a. Determine the percent yield if 10.0 g of methane is burned producing
19.5 g of water.