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One gram of serum albumin dissolved in 1...

One gram of serum albumin dissolved in `1000cm^(3)` of water gives a solution height of 3.9 mm of Ht of `25^(@)C`. What is the molar mass of serum albumin? Density of the solution can be taken as `1.0 g cm^(-3)`.

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Osmotice pressure of the solution
`pi - rho g h=3.9/10xx1xx981=382.59 "dyne" cm^(-2)`
Now
`pi V=nRT`
`pi=(nRT)/V`
or `pi=(WxxRxxT)/(MxxV)`
`:.M=(1xx8.314xx10^(7))/(382.59xx1000)`
`=6.475xx10^(4)g "mol"^(-1)`
`=64.75kg "mol"^(-1)`
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