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A 1.00 molar .aqueous solution of trichl...

A 1.00 molar .aqueous solution of trichloroacetic acid `("CCl"_(3)"COOH")` is heated to its boiling point. The solution has the boiling point of 100.18 `""^(@)`C. Determine the Van't Hoff factor for trichloroacetic acid. `(K_(b) "for water" = 0.512 "kg mol"^(-1))`.

Text Solution

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`Delta T_(b) = iK_(b)`m
`(100.18 - 100)^(@)C = I xx 0.512 k" mol"^(-1) xx 1 ` m
0.18 K = i`xx 0.512` K g `mol^(-1) xx 1` m
i= 0.35
OR
(i) Mole fraction is the ratio of number of moles of one component to the total number of moles in a mixture. `" " ` [ Or mathematical expression ]
`x_(A) = (n_(A))/(n_(A) + n_(B))`
Where `n_(A)` = number of moles of component A. `n_(B)` = number of moles of component B.
(ii) Solution which obey Raoult.s law over the entire range of concentration are called ideal solutions.
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