Question

suppose 1.5 g of compound a are consumed in a reaction with 4.0 g of compound b that produces only one product, compound c. calculate the theoretical yield of c. round your answer to the nearest 0.1 g. suppose 3.0 g of c are actually isolated at the end of the reaction. what is the percent yield of compound c? round your answer to the nearest whole percent.

Explanation:

Step1: Calculate theoretical yield

According to the law of conservation of mass, the theoretical yield of C is the sum of the masses of A and B.
$1.5 + 4.0=5.5$ g

Step2: Calculate percent - yield

The percent - yield formula is $\text{Percent Yield}=\frac{\text{Actual Yield}}{\text{Theoretical Yield}}\times100\%$.
$\text{Percent Yield}=\frac{3.0}{5.5}\times 100\%=\frac{300}{5.5}\% \approx 55\%$

Answer:

5.5 g
55%