Percent Yield, Theoretical Yield, & Actual Yield
I. Video on Percent Yield, Theoretical Yield, & Actual Yield
II. Notes on Percent Yield, Theoretical Yield, & Actual Yield
Theoretical Yield- the amount of product one predicts to get as calculated on paper.
Actual Yield- the amount of product actually obtained by laboratory results
Percent Yield- the comparison between the actual yield vs the theoretical yield.
Percent Yield = Actual Yield x 100 =
Theoretical Yield
Exercises
1. in the reaction between CO and Fe3O4, the theoretical yield in an experiment is calculated to be
42.7 g Fe. When a careless chemistry student carries out the experiment, the actual yield is
42.9 g Fe. Calculate the percentage yield.
2. When NH3 is prepared from 28 g N2 and excess H2, the theoretical yield is 34 g. When this
reaction is carried out in a given experiment, only 30. g is produced. What is the percentage
yield?
3. Methanol is produced by the reaction between carbon monoxide and hydrogen gas. If the
theoretical yield for this reaction was calculated to be 6.86 x 104g by the percent yield for
this reaction is only 52%, what is the actual yield obtained from this reaction?
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