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A solution containing 8.6 g urea in 1 L ...

A solution containing `8.6 g` urea in `1 L` was found to be isotonic with `5%(weight//volume)` solution of an organic non-volatile solute. The molecular weight of latter is

A

348.9

B

34.89

C

3489

D

361.2

Text Solution

Verified by Experts

The correct Answer is:
A
For two non-electrolyte solutions, if isotonic `C_(1)=C_(2)`.
`:. 8.6/(60 xx 1) =(5xx1000)/(Mw_(2) xx 100) rArr Mw_(2) =348.9`
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