Question

A decomposition reaction produces sodium carbonate from sodium bicarbonate.
If the collected mass of sodium carbonate was $3.7g$ and the predicted amount was $4.0g$, what is the percent yield of the reaction?

• A. $92.5\%$
• B. $95\%$
• C. $7.5\%$
• D. $90\%$

Answer 1

The correct option is A $92.5\%$

Percent Yield of a compound is defined as the ratio of actual yield to the theoretical yield.

$\Rightarrow$ Actual Yield $=3.7g$

Theoretical Yield $=4.0g$

So, $\%$ yield $\frac{3.7}{4}\times 100$$=92.5\%$

So, Percent yield $=92.5\%$