Question

determine the percent yield if the theoretical yield was calculated to be 2.68 g and the collected mass was measured to be 1.95 g.
a) 37.4 %
b) 72.7 %
c) 100. %
d) 137 %

Explanation:

Step1: Recall the formula for percent yield

Percent yield = $\frac{\text{actual yield}}{\text{theoretical yield}}\times100\%$

Step2: Substitute the values into the formula

Here, actual yield = $1.95$ g and theoretical yield = $2.68$ g.
Percent yield = $\frac{1.95}{2.68}\times100\%$

Step3: Calculate the value

$\frac{1.95}{2.68}\approx0.7276$
$0.7276\times100\% = 72.76\%\approx72.7\%$

Answer:

B. 72.7%