ThermoFever

The enthalpy change of neutralisation of a 1 M solution of $\ce{HCl}$ with a 1 M solution of $\ce{NaOH}$ is -57.3 kJ/mol. The enthalpy change of neutralisation of a 1 M solution of a weak acid $\ce{HA}$ with the same $\ce{NaOH}$ solution is -54.6 kJ/mol. If $\ce{HA}$ is 10 percent ionized in a 1 M solution, what is the enthalpy change (in kJ/mol) for the complete dissociation of $\ce{HA}?$