When 2.643 g of AX (s) dissolves in 104.7 g of water in a coffee cup calorimeter the temperature rises from 24.1 C to 38.1 C. Calculate the enthalpy change in kJ/mol for the solution process AX->A + X

Formula weight of AX is 59.1097 g/mol and specific heat of solution is 4.18 J/gK