Compound A reacts with Compound B to form only one product, Compound C, and it's known the usual percent yield of C in this reaction is 41.%. Suppose 7.5 g of A are reacted with excess Compound B, and 3.9 g of Compound C are successfully isolated at the end of the reaction.
a. What was the theoretical yield of C? Round your answer to the nearest 0.1 g.
b. How much B was consumed by the reaction? Round your answer to the nearest 0.1 g.