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A solution containing 0.85 g of ZnCI(2) ...

A solution containing `0.85 g` of `ZnCI_(2)` in `125.0g` of water freezes at `-0.23^(@)C`. The apparent degree of dissociation of the salt is:
`(k_(f)` for water `= 1.86 K kg mol^(-1)`, atomic mass, `Zn = 65.3` and `CI = 35.5)`

A

`1.36%`

B

`2.47%`

C

`73.5%`

D

`7.35%`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • A solution containing 0.85 g of ZnCl_(2) in 125.0 g of watcr freezcs at -0.23^(@)C. The apparent degree of dissociation of the salt is (K _(f) for water = 1.86 k kg mol ^(-1), atomic mas: Zn =65.3 and Cl =35.5)

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  • An aqueous solution containing an ionic salt having molality equal to 0.19 freezes at -0.704^(@)C . The Van't Hoff factor of the ionic salt is ( K_(f) for water= 1.86 K m^(-1) )

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