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A 2.58 g sample of KNO3 (f.w. + 101.11 u) was added to 98.57 g of...

A 2.58 g sample of KNO3 (f.w. + 101.11 u) was added to 98.57 g of water in a coffee-cup calorimeter. The initial temperature of water was 22.5 deg C, and he temperature of the solution after mixing was 20.4 deg C. On basis of this experiment, what is the heat of solution per mole of KNO3 (f.w. =101.11 g)? The specific heat of water is 4.184 J/g.K.

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