Chemistry - Thermochemistry Question with Solution | TestHub

$\Delta {\text{H}}_{\text{neutr.}}\text{for strong acid with strong base}=-13·7{\text{kcal equiv}}^{-1}$

Enthalpy of ionisation of acetic acid & NH₄OH together

$=-\text{10}\text{.5}-\left(-\text{13}\text{.7}\right)=+\text{3}{\text{.2 kcal mol}}^{\text{-1}}$

Enthalpy of ionisation of only acetic acid

$=-\text{12}\text{.5}-\left(-\text{13}\text{.7}\right)=+\text{1}{\text{.2 kcal mol}}^{\text{-1}}$

Enthalpy of ionisation of only NH₄OH

$=\text{3}\text{.2}-\text{1}\text{.2}={\text{2 kcal mol}}^{\text{-1}}$