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An aqueous solution contaning 5% by weig...

An aqueous solution contaning `5%` by weight of urea and `10%` weight of glucose. What will be its freezing point? `(K'_(f) for H_(2)O "is" 1.86^(circ) mol^(-1) kg)`

Text Solution

Verified by Experts

`Delta T=DeltaT_("urea")+DeltaT_("glucose")` ,
`DeltaT=(1000xx1.86xx5)/(60xx85)+(1000xx1.86xx10)/(180xx85)`
`=1.824+1.216`
=3.04
Freezing point `=0-3.04=-3.04^(@)C`
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