Answer to Question #181071 in General Chemistry for lala

Question

Aspirin is one of the products when you mix Salicylic acid and Acetic anhydride. One kilogram of Salicylic acid produced one thousand and two hundred grams of Aspirin.

C7H6O3(s) + C4H6O3(l) = C9H8O4(s) + CH3COOH(l)

a. Balance the chemical equation;

b. Identify the limiting reactant and the excess reactant if applicable;

c. Compute for the theoretical yield; d. Determine the percent yield of the reaction;

e. Calculate the percent error and

f. Compute for the excess amount of the excess reactant if applicable.

g. Show the complete solutions for your answers in a separate paper.

Answer 1

C₇H₆O₃(S) + C₄H₆O₃ → C₉H₈O₄(S) + CH₃CO₂H

Its not applicable

18.8 g SA x (1 mol SA / 138 g SA) x (1 mol Asp / 1 mol SA) x (180 g Asp / 1 mol Asp) = 24.5 g Asp

 

TY of Asp = 24.5 g

 

%-Yield = (Actual yield / Theoretical yield) x 100%

 

Actual yield = %-Yield x Theoretical yield

 

           = 33.3% x 24.5 g

 

           = 0.333 x 24.5 g

 

          = 8.16 g Aspirin recovered