Question

A reaction produced $30.0$ grams of carbon dioxide. If the theoretical (expected) yield was $45$ grams, what is the percentage yield?

• A. $15$%
• B. $30$%
• C. $67$%
• D. $150$%

Answer 1

Answer: (C)

$67$%

Percentage yield of a compound is the ratio of actual yield to the excepted yield of the compound.

$\%$ Yield = $\frac{\text{Actual Yield}}{\text{Expected Yield}}\times 100=\frac{30}{45}\times 100=\frac{2}{3}\times 100=67\%$