Consider the nucleophilic addition reaction of 2‑butanone with excess propyl magnesiumbromide, made in situ by reacting 1‑bromopropane with metallic magnesium, to make 3‑methyl‑3‑hexanol. 2-butanone 1-bromopropane magnesium 3-methyl-3-hexanol =0.81 g/ml =1.35 g/ml =0.82 g/ml a reaction was performed in which 0.40 ml0.40 ml of 2‑butanone was reacted with an excess of propyl magnesiumbromide to make 0.38 g0.38 g of 3‑methyl‑3‑hexanol. calculate the theoretical yield and percent yield for this reaction.

Theoretical yield is 0,52 g and percent yield for this reaction is 73%

Explanation:

The theoretical yield is the maximum amount of product a chemical reaction could create based on chemical equations. The percent yield is the ratio between theoretical yield and obtained yield times 100.

In the reaction:

2-butanone + propyl magnesium bromide → 3-methyl-3-hexanol

The theoretical yield with 0,40 mL is:

0,40 mL×××× = 0,52 g

Thus, percent yield for this reaction is:

0,38g/0,52g×100 = 73%

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