Home
Class 12
CHEMISTRY
200 cm^(3) of an aqueous solution of a p...

`200 cm^(3)` of an aqueous solution of a protein contains 1.26 g of protein. The osmotic pressure of such a solution at 300 K is found to be `2.57 xx 10^(-3)` bar. Calculate the molar mass of the protein.
(R = 0.083 L bar `"mol"^(-1)K^(-1)`)

Text Solution

Verified by Experts

The given values are
`pi=2.57xx10^(-3)` bar
`V=200 cm^(3)=0.2 L`
`T=300 K`
`R=0.083 L` bar `mol^(-1) K^(-1)`
Using the formula,
`Mw_("solute")=(W_("solute")xxRxxT)/(pixxV)`
`= (1.26 g xx 0.083 L` "bar" `"mol"^(-1) K^(-1)xx300 K)/(2.57xx10^(-3) "bar"xx0.2 L)`
`= 61022 g mol^(-1)`
Thus, the molecular weight of solute is `61022 g mol^(-1)`.
Promotional Banner

Similar Questions

Explore conceptually related problems

300cm^(3) of an aqueous solution of a protein contains 2.12 g of the protein, the protein, osmotic pressure of such a solution at 300 K is found to be 3.89xx10^(-3)" bar." Calculate the molar mass of the protein. ("R = 0.0823 L bar mol"^(-1)K^(-1))

300 cm^(3) of an aqueous solution contains 1.26 g a polymer. The osmotic pressure of such solution at 300 K is found to be 1.26xx10^(-3) bar. Calculate the molar mass of the polymer.

0.85% aqueous solution of NaNO_(3) is apparently 90% dissociated . The osmotic pressure of solution at 300 K is

Osmotic pressure of a solution containing 7 g of a protein present in deciliter of a solution is 3.3xx10^(-2) bar at 37^(@)C . Calculate the molar mass of protein.

The osmotic pressure of a solution containing 0.1 mol of solute per litre at 273 K is

The osmotic pressure of a solution is 1.3 atm . The density of solution is 1.3 g cm^(-3) . Calculate the osmotic pressure rise. ( 1 atm =76 cm Hg , d_(Hg)=13.6 g cm^(-3) )

What is meant by Vant Hoff's factor? The Osmotic pressure of 0.0103 molar Solution of an electrolyte is found to be 0.70 atm at 27 C. Calculate the Vant Hoff factor [R=0.082" liter "mol^(-1) K^(-1)] .

3 gram of non-volatile solute in a 1000 cm^(3) of water shows an osmotic pressure of 2 bar at 300K. Calculate the molar mass of the solute (R=0.0853" L bar "K^(-1)mol^(-1)) .