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How much urea must be dissolved in 10^(-...

How much urea must be dissolved in `10^(-2)m^(3)` water to yield a pressure is `2.03xx10^(5)Nm^(-2)` at 300K?

A

48.30 g

B

60.0 g

C

24.15 g

D

48.03 g

Text Solution

Verified by Experts

Osmotic pressure `=2.03xx10^(5)Nm^(-2)`
`pi=CRT`
`2xx10^(5)=m/60xx1000=80.186xx60xx0.01g` in `0.01m^(3)=48.3gimplies1J=1Nm`
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