The enthalpy of neutralisation of a weak...

The enthalpy of neutralisation of a weak acid in 1 M solution with a strong base is `-56.1` kJ `mol^(-1)`/ If the enthalpy of ionization of the acid is 1.5 kJ `mol^(-1)` and enthalpy of neutralization of the strong acid with a strong base is `-57.3` kJ `"equiv"^(-1)`, what is the % ionization of the weak acid in molar solution (assume the acid to be monobasic)?

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