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Enthalpy of neutralisation of acetic aci...

Enthalpy of neutralisation of acetic acid by `NaOH` is `-50.6KJ//mol` and the heat of neutralisation of a storng acid with a strong bases is `-55..9KJ//mol` . What is the value of `DeltaH` for the ionisation of `CH_(3)COOH` ?

A

`+5.3KJ//mol`

B

`+6.2KJ//mol`

C

`+8.2KJ//mol`

D

`+9.3KJ//mol`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaH=DeltaH_(ioniz)+DeltaH_("neu")`
`=-50.6=DeltaH_(ioniz)+(-55.9)`
`DeltaH_(ioniz)=+5.3KJ//mol`
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