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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)?

A

`25`

B

`20`

C

`15`

D

`10`

Text Solution

Verified by Experts

The correct Answer is:
B

`DeltaH_("ioni")=DeltaH_(WA//SB)-DeltaH_(SA//SB) 0.3/1.5xx100`
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