# What are some common mistakes students make with percent yield?

May 28, 2015

To find percent yield use the following equation:

$\text{actual yield"/"theoretical yield} \times 100$

Common errors students make are dividing the theoretical by the actual yield.

Sometimes students confuse percent yield with percent error.

Percent error is analogous to the percent wrong you got on a quiz.
Percent yield is analogous to the percent correct you got on a quiz.

Perfect score is the "theoretical" score you could achieve.
Your real score is the "actual" score you did achieve.