An organicsubstance `(M=169gmol^(-1))` isdissolved in 2000 cm3 of water. Its osmotic pressure at `12^@C` was found to be 0.54 aim. If R = 0.0821 L atm `K^(-1) mol^(-1)`, calculate the mass of the solute.

IF 10 g of solute was dissolved in 250 mL. of water and osmotic pressure of the solution was found to be 600 mm of Hg at 300 K, then molecular weight of the solute is _______. g mol ^(-1)

If 3 g of glucose ( molecular mas = 180 ) is dissolved in 60 mL water at 15^(@)C , then the osmotic pressure of this solution will be (R=0.0821 L atm K^(-1) mol ^(1)) _____.

If 1.71g of sugar (molarmass = 342) are dissolved in 500 cm3 of a solution at 300K, what will be its osmotic pressure? (R = 0.082 L bar K^(-1) mol^(-1)) .

At300 K,thesolutionof ureahasitsmolarity 0.1.Calculate the osmotic pressure of urea solution. Given that R = 0.082 Lbar K-1mol^(-1) .

The volume occupied by 1.8 g of water vapour at 374 ^@C and 1 bar pressure will be . [Use R = 0.083 ba r L K^(-1) mol^(-1) ]

The volume of 2.8g of CO at 27^(@)C and 0.821 atm pressure is (R=0.0821 lit. atm mol^(-1)K^(-1))

Calculate the temperature of 4.0 mol of a gas occupying 5 dm^3 at 3.32 bar. (R=0.083 bar dm^3 K^(-1) mol^(-1) )

200 cm3 of an aqueous solution of a protein contain1.26g of the prote in.The osmotic pressure of such a solution at 300 K is found to be 2.57 xx 10^(-3) bar. Calculate the molarimass of-the protein.

The vapour pressure of acetone at 20^(@) C is 185 torr when 1.2 g of a non - volattile substance was dissolved in 100 g of acetone at 20^(@) C ,its vapour pressure was 183 torr . The molar mass ( g mol ^(-1) ) of the substance . is molar mass ( g mol ^(-1)) of the substance is ______.

Calculate the volume occupied by 8.8g of CO_2 at 31.1^@C and 1 bar pressure R=0.083 bar dm^3 K^-1 mol^-1 .