In a constant-pressure calorimeter, 70.0mL of 0.300 M Ba(OH)2 was added to 70.0mL of 0.600 M HCL. The reaction cause the temperature of the solution to rise from 22.92 degrees Celsius to 27.01 degrees Celsius. If the solution has the same density as well as specific heat as water, explain what is delta H for this reaction per mole of H2O produced? Presume that the total volume is the sum of the individual volumes