Experiment 7
Enthalpy of Solution

Initially you will need to calibrate a temperature probe and an alcohol thermometer. These will then be used to measure temperature changes of a measured amount of water in a double-sided, styrofoam coffee cup, which will serve as a calorimeter. Knowing the mass of water, its specific heat, and the change in temperature will allow you to calculate the heat capacity of the calorimeter system. Once the heat capacity of the calorimeter is known, the same techniques can be used to measure the temperature changes when two different chemicals, calcium chloride and ammonium nitrate, are dissolved in measured amounts of water. This will allow the calculation of the heat of solution for each of the chemicals.