Aspirin (C9H8O4) is produced commercially by reacting salicylic acid (C7H603) with acetic anhydride (C4H6O3). Acetic acid (C2H4O2) is formed as the byproduct of this reaction. a) How many grams of aspirin can be prepared from the reaction of 250 g of acetic anhydride and 100 g of salicylic acid? b) You have successfully synthesized pure aspirin in the lab with the above quantities of reactants and obtained 102 g of pure aspirin. What is your percent yield? c) Your boss is impressed with your results in the lab and has asked you to make more aspirin for a planned clinical trial. You will need to supply an additional 900 g of aspirin for the study. How much of each of the starting materials will you need in order to make the additional product?

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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".