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Osomotic pressure of a solution containi...

Osomotic pressure of a solution containing 2 g dissolved protein per 300 `cm^3` of solution is 20 mm of Hg at `27^@C`. The molecular mass of protein is

A

`"6239.6 g mol"^(-1)`

B

`"12315.5 g mol"^(-1)`

C

`"3692.1 g mol"^(-1)`

D

`"7368.4 g mol"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
`pi=(n_BRT)/V , n_B=W_B/M_B`
`pi=W_B/M_B="RT"/V`
`M_B=W_B/Vxx"RT"/pi=(2xx0.0821xx300xx760)/(0.3xx20)`
=6239.6 g `mol^(-1)`
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