Chapter 8.5, Problem 8.7P

When 25.0 mL of 1.0 M H₂SO₄ is added to 50.0 mL of 1.0 M NaOH at 25.0 °C in a calorimeter, the temperature of the aqueous solution increases to 33.9 °C. Assuming that the specific heat of the solution is 4.18 J/(g · °C), that its density is 1.00 g/mL, and that the calorimeter itself absorbs a negligible amount of heat, calculate ΔH in kilojoules for the reaction.

${\text{H}}_2{\text{SO}}_4(aq)+2\text{NaOH}(aq)\stackrel{}{\to }2{\text{H}}_2\text{O}(l)+{\text{Na}}_2{\text{SO}}_4(aq)$