Question

She was expecting 122.7 grams of lead for her lesson that day but only got out 107.9 grams of lead. What was the percent yield of her reaction

Answer 1

The equation for percent yield is
$PercentYield= \frac{Actual}{Theoretical} X 100$

As such, the theoretical yield or expected yield is, in this case, 122.7g of Pb, the actual in this case is 107.9g so we have
$PercentYield= \frac{107.9}{122.7} X 100 \\ Percent Yield=0.879381X100$

Therefore, the percent yield of her reaction is 89.94%