Q.

In a solvent 50% of an acid HA dimerizes and the rest dissociates. The Van’t Hoff factor of the acid is ________×102 (nearest integer)

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answer is 125.

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Detailed Solution

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Van’t Hoff  factor i=finalmolesinitialmoles=0.25a+0.5a+0.5a0.5a+0.5a

i=1.25i=125×102

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