Answers

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.

Answer: 90.9 %

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?

Answer: 88%

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?

Answer: 3.57 x 10⁴ g CH₃OH