Aspirin, C9H8O4, is produced from salicylic acid, C7H6O3, and acetic anhydride, C4H6O3, as shown below. C7H6O3 + C4H6O3  C9H8O4 + HC2H3O2 (b) How much salicylic acid would be required if only 73% of the salicylic acid is converted to aspirin? (c) What is the theoretical yield of aspirin if 161 kg of salicylic acid is allowed to react with 167 kg of acetic anhydride? (d) If the situation described in part (c) produces 175 kg of aspirin, what is the percentage yield?

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".