In a coffee cup calorimeter, 1.60 g is mixed with 75.0g water at an initial temperature of 25.00°C. After the dissolution of salt, the final temperature of the calorimeter contents is 23.34°C. Assuming that the solution has a heat capacity of 4.18J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the in units of kJ/mol.
