The question requires us to calculate the percent yield of a reaction, given its theoretical yield (3.76g) and actual yield (1.45g).
The percent yield of a reaction can be calculated by dividing the actual amount of product obtained - actual yield - by the amount of product that was expected - theoretical yield, and then multiplying this value by 100%:
Thus, considering the values provided by the question, we can calculate the percent yield of the reaction as it follows:
(note that the values provided by the question present 3 significant figures, thus our answer must have the same amount of significant figures).
Therefore, the percent yield of the reaction is 38.6%.