When a student mixes 50 mL of 1.0 mol L-1 HCl and 50 mL of 1.0 mol L-1 NaOH in a calorimeter, the temperature of the resulting solution increases from 21.0°C to 27.5°C. Assuming the calorimeter absorbs only a negligible amount of heat, that the total volume of the solution is 100 mL, its density 1.0 g mL-1 and its specific heat is 4.2 J g-1 °C-1, calculate the energy released per mole of neutralized acid.
