For homework problem #53, the question asks to find the final temperature of the solution and the solutions manual says that the enthalpy of reaction = -153.89 + 2 (-167.16) - 2 (-167.16). I'm confused where they got these numbers. I looked up the enthalpy of formation of zinc and HCl and these weren't the same numbers so I'm confused. Also, where do they get 800 g? Is this because the density ...
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