Two solutions namely, 500 mL of 0.50 M HCl and 500 mL of 0.50 M NaOH at the same temperature of 24.5 degree C are mixed in a constant-pressure calorimeter. The heat capacity of the calorimeter was 550 J/degree C. Given that the specific heat of the solution is 4.184 J/g degree C, the density of the solution is 1.00 g/mL, and that the heat of neutralization for the process H^+ (aq) + OH^- (aq) rightarrowH_2O (l) is -56.2 kJ, what is the final temperature of the mixed solution?