The initial temperature of both solutions was the same 18.46C. A quantity of 4.00x102 ml of 0.600MHNO3 is mixed with the 4.00x10 2 ml of0.300M Ba (OH)2 in a constant -pressure calorimeter of negligible heat capacity. Calculate the final temperature of the solution when the heat of neutralization is: -56.2kJ/mol