in a constant pressure calorimeter, 65.0 mL of 0.320 M Ba(OH)2 was added to 65.0 mL of 0.640 M HCL. The reaction caused the temperature of the solution to rise from 21.65 degrees C to 26.01 degrees C. If the solution has the same density and specific heat of water, what is the change in H for this reaction (per mol H2O produced)? Assume that the total volume is the sum of the individual volumes.