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19.5g of CH(2)FCOOH is dissolved in 500g...

`19.5g` of `CH_(2)FCOOH` is dissolved in `500g ` of water . The depression in the freezing point of water observed is `1.0^(@)C`. Calculate the Van't Hoff factor and dissociation constant of fluoroacetic acid.

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(i) `1.937`
(ii) `~~_(^^)`
`(iii) 99.2%`
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