1. A student investigates the enthalpy of solution, AH coln, for two alkali metal halides, LiCl and NaCl. In addition to the salts, the student has access to a calorimeter, a balance with a precision of +0.1 g, and a thermometer with
a precision of +0.1°C.
(a) To measure ΔΗ,
Isoln for LiCl, the student adds 100.0 g of water initially at 15.0°C to a calorimeter and adds
10.0 g of LiCl(s), stirring to dissolve. After the LiCl dissolves completely, the maximum temperature
reached by the solution is 35.6°C.
(i) Calculate the magnitude of the heat absorbed by the solution during the dissolution process, assuming
that the specific heat capacity of the solution is 4.18 J/(g•°C). Include units with your answer.
(ii) Determine the value of AH soln for Lici in kJ/mol. com