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Jaswant Krishnan
Asked: 2022-10-29T16:39:19+05:30 In:

`106.2g` 1 molal aqueous solutio of ethylene glycol is cooled to `-3.72^(@)C`. Mass of of ice separated during cooling is `(K_(f0` water `=1.86` freezing point of water `=0^(@)C )`
A. `25g`
B. `50g`
C. `60g`
D. `40g`

`106.2g` 1 molal aqueous solutio of ethylene glycol is cooled to `-3.72^(@)C`. Mass of of ice separated during cooling is `(K_(f0` water `=1.86` freezing point of water `=0^(@)C )`
A. `25g`
B. `50g`
C. `60g`
D. `40g`
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  1. Correct Answer – 2
    Mass of solute in `1kg` water `=62g`
    `:.` Mass of solute in `106.2g` solution `=(62)/(1062)xx106.2=6.2g`
    `3.72=1.86xx(6.2xx1000)/(62xxw)`
    `w=50″ “:.` Mass of ixe separated `=50g`

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