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An aqueous solution containing 21.6 mg a...

An aqueous solution containing `21.6 mg` at a solute in `100 ml` of solution has an osmotic pressure of `3.70 mm` of `Hg` at `25^(@)C`. The molecular wt of solute in `g//mol` is

A

1085

B

9035

C

1355

D

700

Text Solution

Verified by Experts

The correct Answer is:
1
`piV=(w)/(M)RT`
`(3.70)/(760)xx(100)/(1000)=(21.6xx10^(-3))/(m)xx0.0821xx298`
`m(` molecular mass `)=1085g//mol`
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