Aspirin or acetyl salicylic acid is synthesized by reacting salicylic acid with acetic anhydride:

C7H6O3 (salicylic acid) + C4H6O3 (acetic anhydride) = C9H8O4 (aspirin) + C2H4O2 (acetic acid)

(a) How much salicylic acid is compelled to develop 0.400 g of aspirin (about the content in a tablet), assuming the acetic anhydride is present in excess?

(b) Calculate the amount of salicylic acid required if 74.9% of salicylic acid is converted to aspirin.

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(c) In one experiment, 9.26 g of salicylic acid is reacted with 8.54 g of acetic anhydride. Calculate the theoretical yield of aspirin and also the percent yield if just 10.9 g of aspirin is produced.


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