Neutralization Reaction in Thermochemistry
A quantity of 2 x 102 mL of 0.862 Molar HCl is mixed with 2 x 102 mL of 0.431Molar Ba(OH)2 in a constant pressure calorimeter that has a heat capacity of 453 J/oC.
The initial temperature of the HCl and Ba(OH)2 solutions is the same at 20.48oC. For the process
H+(aq) + OH-(aq) --> H2O(L)
the heat of neutralization is -56.2 KJ.
What is the final temperature of the mixed solution?© SolutionLibrary Inc. solutionlibary.com 9836dcf9d7 https://solutionlibrary.com/chemistry/physical-chemistry/neutralization-reaction-in-thermochemistry-2ae
... (0.862mol HCl/1L) = 0.172 mol HCl
Also keep in mind that the density of water is 1g/ml so 400ml of solution is 400g.
The amount of heat liberated during the reaction is
q(rxn) = 0.0172 mol * (-56200/1mol) = -9.67 K J
q(rxn) = -(msoln*ssoln*deltat + ...