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An aqueous solution of glucose containin...

An aqueous solution of glucose containing `12 g` in `100 g` of water was found to boil at `100.34^(@)C`.
Calculate of `K_(b)` for water in `K mol^(-1)Kg`.

Text Solution

Verified by Experts

Given boiling point of water `=100^(@)C`
Boiling point of solution `=100.34^(C)`
`:.` Elevation in boiling point `DeltaT=0.34`
`w=12.g W=100 g, m=180`
`DeltaT=(100K_(b)W)/(mW)`
`0.34=(1000xxK_(b)xx12)/(180xx100)`
`:.K_(b)=0.51"mol"^(-1) kg`
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