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Chem 110B - Prep Chem

Ch.14 - Heat Transfer

Answer the following:

A. 37 g of water at 4C are mixed with 121 g of water at 69C. What is the final temperature?

B. 75.3 g of an unknown solid at 171C are mixed with 84 g of H2O (l) at 20C. If the final temperature of the mixture is 31C, what is the unknown solid's heat capacity?