What is the theoretical yield of aspirin (180.2 g/mol) in the reaction of 2.94 grams of salicylic acid (138.1 g/mol) with excess acetic anhydride (102.1 g/mol)? show your work. include units and round your final answer appropriately.

Theoretical Yield of Aspirin = 3.84 g

Explanation:

The reaction between salicylic acid (C7H6O3) and acetic anhydride (C4H6O3) to form aspirin(C9H8O4) and acetic acid (HC2H3O2) is:

Mass of salicylic acid present = 2.94 g

Molar Mass of salicylic acid = 138.1 g/mol

Since acetic anhydride is in excess, salicylic acid will be the limiting reagent and will determine the amount of product formed.

Based on the reaction stoichiometry:

1 mole of salicylic acid yields 1 mole of aspirin

Therefore, Moles of aspirin = 0.0213

Molar mass of aspirin = 180.2 g/mol