1 litre of a solution containing 500 g of a protein exerts an osmotic pressure of 0.82 atm at `27^(@)C.` The molecular mass of the protein is :
1 litre of a solution containing 500 g of a protein exerts an osmotic pressure of 0.82 atm at `27^(@)C.` The molecular mass of the protein is :
A. 82000
B. 50000
C. 41000
D. 15000
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Correct Answer - D
`piV=W_(2)/M_(2) RT,`
`:. 0.82 xx 1 = 500/M_(2) xx 0.0821 xx 300,`
`M_(2) = (500 xx 0.0821 xx 300)/0.82 = 15000`
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