30.0 mL of 2.0 M NH3(aq) at 21.0°C is mixed with 30.0 mL of 2.0 M HCl(aq) at 21.0°C in a calorimeter. As the reaction
proceeds, the temperature rises to 33.56°C. Assume the
densities of the solutions are both 1.00 g/mL and the specific
heats are 4.18 J/gºC. Calculate the enthalpy change (AH) of
the reaction in KJ.