Feb.8/2011:Percent Yield (Brian)

-The theoretical yield of a reaction is the amount of products that should be formed
-The actual amount depends on the experiment
-The percent yield is like a measure of success

* % yield = Actual      multiplied by 100
                Theoretical  example:
in a double replacement reaction silver nitrate is reacted with barium sulphate. If 2.0mol of silver nitrate react and 468g of silver sulphate are produced.
-determine the theoretical yield of Ag2SO4
-determine the percent yield
2AgNO3+BaSO4 ----> Ba(NO3)2+Ag2SO42.0mol x 1 x 311.9g = 311.9g                          468g x 100 = 150%
               2    1mol                                          311.9g