A solution of sucrose (molar mass 342g m...

A solution of sucrose (molar mass `342g mol^(-1)`has been produced by dissolving`68.5g`sucrose in `1000g`water .The freezing point of the solution obtained will be `(K_(f)` for `H_(2)O=1.86kgmol^(-1))`

`-0.372^(@)C`

`-0.520^(@)C`

`+0.372^(@)C`

`-0.570^(@)C`

Text Solution

Verified by Experts

The correct Answer is:

`DeltaT_(f)="molarity" xxK_(f)`
`(68.5xx1000)/(342xx1000)xx1.86=0.372`
`:.T_(f)=0-0.732=-0.372^(@)C`

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