Answer to Question #304117 in Chemistry for shan

Question

A student was asked to determine the enthalpy of a reaction of NH4NO3 in water using a coffee cup calorimeter. The heat capacity of the calorimeter, Ccal, was determined to be 64.17 J/°C. If 1.33×10 mol is dissolved in excess water, the temperature drops from 29.0 to 25.0°C. What is the enthalpy of dissolution of the ammonium salt in J/mol? Assume that all NH4NO3 dissolved in water.

Answer 1

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