Question

A student conducts an experiment to produce a $Ca{CO}_3$ precipitate. The student collects $1.80g$ of product after predicting it should be possible to produce $2.00g$ of the product.
What is the student's percent yield for this experiment?

• A. $-10$%
• B. $+90$%
• C. $+10$%
• D. $+111$%

Answer 1

The correct option is B $+90$%

Percent Yield is the ratio of actual yield to the theoretical yield.

$\Rightarrow \%$ Yield $=\frac{E}{T}\times 100$

$\Rightarrow$ Here, $E=1.8g;T=2g$

So, percent yield $=\frac{1.8}{2}\times 100=90\%$