In A Coffee Cup Calorimeter 1 10 G Of Nh4no3 Is Mixed With 79 0 G Of Water At An

In a coffee-cup calorimeter, 1.10 g of NH4NO3 is mixed with 79.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.63°C. Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.