Aspirin or acetyl salicylic acid is synthesized by combining salicylic acid with acetic an...

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

(a) How much salicylic acid is required to produce 0.400 g of aspirin (about the content in a tablet), assuming acetic anhydride is present in excess? (b) Calculate the amount of salicylic acid needed if only 74.9 percent of salicylic is converted to aspirin. (c) In one experiment. 9.26 g of salicylic acid react with 8.54 g of acetic anhydride. Calculate the theoretical yield of aspirin and the percent yield if only 10.9 g of aspirin are produced.