1.

A solution of urea contain 8.6 gm/litre (mol. wt. 60.0). If is isotonic with a 5% solution of a non-volatile solute. The molecular weight of the solute will be

Answer»

`348.9`
`34.89`
3489
`861.2`

Solution :For two non-electrolytic solution if isotonic, `C_(1)=C_(2)`
`therefore (8.6)/(60xx1)=(5xx1000)/(m.wt. xx 100) therefore m = 348.9`


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