Answer:
The theoretical yield of aspirin is 2.61g
Explanation:
The balanced equation is
Salicylic acid + Acetic anhydride ---> Acetylsalicylic acid + Acetic acid
Number of moles salicylic acid = (2.0g) / (138 g/mol) = 0.0145 mol
Mass of acetic anhydride = (1.08g/ml ) * (5.0 mL) = 5.4g
Number of moles of acetic anhydride = 5.4g / (102g/mol) = 0.0529 mol
As we can see in the reaction equation
1 mol of acetic anhydride produce 1 mol aspirin
OR
0.0145 mol salicylic acid produces 0.0145 mol aspirin.
Mass of aspirin produced = 0.0145 mol * (180.157g/mol)
The theoretical yield of aspirin is 2.61g
