0.387 gm of a biopolymer when dissolved in 100 ml water at `27^@C` shows an osmotic pressure of 4.2 atm find the molecular weight of the biopolymer.

1.26 gm of a protine dissolved in 200 cc aqueous solution shows an osmotic pressure of 2.57xx10^-3 bar at 300K. Calculate the molecular weight of the protine.

10g of an organic substance when dissolved in two litres of water gave an osmotic pressure of 0.59 atm, at 7^(@)C . Calculate the molecular weight of the substance.

A solution containing 6 gm of a solute dissolved in 250 ml of water gave an osmotic pressure of 4.5 atmosphere at 27^(@)C . Calculate the boiling point of the solution. The molal elevation constant for water is 0.52

0.64 g of gas at 0^@C and 75 cm Hg pressure occupy 225 ml volm. Find its molecular weight?

When 45 g of an unknown compound was dissolved in 500 g of water, the solution has freezing point of -0.93^(@)C (i) What is the molecular weight of compound ? (K_(f)=1.86) (ii) If empirical formula is CH_(2)O , what is the molecular formula of compound ?

20 g of a solid solute is dissolved in 180 g of water. At 100^(@)C the vapour pressure of the solution becomes 740 mmHg. Calculate relative molecular mass of the solute. (No association/dissociation of the solute takes place )

State the factors on which osmotic pressure of a liquid depends. 10gm glycerine dissolved in 1 litre solution is isotonic with 2% Glucose solution. What is the molecular weight of Glycerine?

A solution containing 2.5 g of a non-volatile solute in 100 gm of benzene boiled at a temperature 0.42K higher than at the pure solvent boiled. What is the molecular weight of the solute? The molal elevation constant of benzene is "2.67 K kg mol"^(-1) .

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

A solution of 2.44xx10^-3 kg of a nonelectrolyte solute dissolved in 0.075 kg of water boiled at 100.413^@C . Calculate the molecular mass of the solute. K_b for water = 0.52 K kg mol^-1