Q.

If enthalpy of neutralisation of HCl by NaOH is -57 kJ mol-1 and with NH4OH is -50 kJ mol-1. Calculate enthalpy of ionisation of NH4OH( aq).

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answer is 7.

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Detailed Solution

heat of ionisation = heat of neutralisation + 57 ΔIonHNH4OH=7kJ
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If enthalpy of neutralisation of HCl by NaOH is -57 kJ mol-1 and with NH4OH is -50 kJ mol-1. Calculate enthalpy of ionisation of NH4OH( aq).