Aspirin, C₂H8O4, is produced from salicylic acid, C7H603, and acetic anhydride, C4H603, as shown below. C7H603 + C4H6O3 → C9H8O4 + HC₂H302 (a) How much salicylic acid is required to produce 2.3 × 10² kg of aspirin, assuming that all of the salicylic acid is converted to aspirin? kg (b) How much salicylic acid would be required if only 69% of the salicylic acid is converted to aspirin? kg (c) What is the theoretical yield of aspirin if 159 kg of salicylic acid is allowed to react with 197 kg of acetic anhydride? kg (d) If the situation described in part (c) produces 177 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".