`200cm^(3)` of aqueous solution of pretein contains 1.26 g of the protein. The osmotic pressure of such a soolution at 300 K is found to be `2.57xx10^

Question

`200cm^(3)` of aqueous solution of pretein contains 1.26 g of the protein. The osmotic pressure of such a soolution at 300 K is found to be `2.57xx10^

`200cm^(3)` of aqueous solution of pretein contains 1.26 g of the protein. The osmotic pressure of such a soolution at 300 K is found to be `2.57xx10^(-3)` bar. Calculater the molar mass of the protein.

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

`M_(B)=(W_(B)xxRxxT)/(AxxV)`
Mass of protein `(W_(A))=1.26 g`
Volume of solution `(V)=200 cm^(3)=0.2 L`
Osmotic of solution `(pi)=2.57xx10^(-3) bar`
Solution Constaint `®=0.0821 L bar K^(-1) mol^(-1)`
Temperature `(T)-300 K`
`M_(B)=((1.26)xx(0.0821L bar K^(-1)mol^(-1))xx(300 K))/((2.57xx10^(-3)bar)xx(0.2L))=60.38 g mol^(-1)`