Explain what is the theoretical yield of aspirin in grams and moles)show calculations. If you start will 5.16 grams of salicyclic acid. The mass of the crude aspirin is 6.89 grams and the mass of the recrystallized aspirin is 2.66 grams. The formula for salicylic acid is C6H4OHCOOH = 138.118 moles and the formula for acetic anhydride isC7H6O3 = 138.118 moles