Aspirin, (HC9H7O4, MM = 180.2 g/mol) is produced by the reaction of salicylic acid (HC7H5O3, MM = 138.1 g/mol) and acetic anhydride (C4H6O3, MM = 102.1 g/mol).

HC₇H₅O₃(s) + C₄H₆O₃(l) --> C₉H₈O₄(s) + C₂H₄O₂(l)

If 2.04 g of Aspirin is produced from the reaction of 3.03 g C7H6O3, what is the percent yield?

a.) 28.8%

b.) 50.9%

c.) 29.0%

d.) 51.6%