15.4g of methanol (CH3OH) reacts completely according to the following reaction: CH3OH --> CH2O+ H2 If 12.35g of formaldehyde is produced, what is the percent yield for this reaction?

Answer 1

15.4g x (1 mol CH3OH/32.042g) x (1 mol CH2O/1 mol CH3OH) x (30.026g/1 mol CH2O) = 14.4 grams (this is the theoretical yield)

%yield= (actual yield/theoretical yield) x 100

(12.35 g/14.4g) x 100= 85.8 % (this is your answer)