Asprin(acteyl salicylic acid) can be synthesized by reacting acetic anhydride with salicylic acid. Assume the reaction was run and 1.75 grams of a solid product was obtained. Recrystalization of the 1.75 g mixture yielded 1.50 g of asprin.

Question

a. What was the percentage recovery of asprin from the recrystalization?

b. Why was recrystalization used for the purification of asprin rather than filteration or evaporation? Explain your answer.

Answer 1

a)% recovery = [final mass/ initial mass] x 100%

b) hint: think about the state of matter of the impurities

Answer 2

im still stuck on part b :(

Answer 3

yesyes