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April 19, 2014

Homework Help: chem

Posted by greeny on Friday, August 17, 2012 at 1:39pm.

Aspirin, C9H8O4, is produced from salicylic acid, C7H6O3, and acetic anhydride, C4H6O3:
C7H6O3 + C4H6O3 --> C9H8O4 + HC2H3O2

a. How much salicylic acid is required to produce 1.5 x 10^2 kg of aspirin, assuming that all of the salicylic acid is converted to aspirin?

b. how much salicylic acid would be required if only 80 percent of the salicylic acid is converted to aspirin?

c. What is the theoretical yield of aspirin if 185kg of salicylic acid is allowed to react with 125kg of acetic anhydride?

d. If the situation described in part c produces 182kg of aspirin, what is the percentage yield?

I'm really confused on this problem, please help? thanks!

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