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 78%. Suppose 10.0 g of A are reacted with excess Compound B, and 12.9g of Compound C are successfully isolated at the end of the reaction.

1. What was the theoretical yield of C?
2. How much B was consumed by the reaction?

1. 16.54 grams.

2. 6.64 grams.

Explanation:

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In this case, the undergoing chemical reaction is:

Thus, with the given information, the theoretical yield of C is:

Moreover, by considering the law of conservation of mass, the mass at the beginning of the reaction equals the mass at the end of the reaction, therefore, the mass of B that was consumed was:

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explanation: