Vapour pressure of pure water at 298K is 23.8 mm Hg. 50g of urea `(NH_2CONH_2)` is dissolved in 850 g of water. Calculate the vapour pressure of water for this solution and its relative lowering.

2 mol ethanol is dissolved in 3 mol water. Calculate the mole fraction of water in the solution.

0.52g of glucose (C_6H_12O_6) is dissolved in 80.2g of water calculate the boiling point of the solution. ( K_b for water is 0.52 K kg mol^-1 ).

Vapour pressure of water at 293 kis 17.535 mm Hg. Calcualte the vapour pressure of water at 293 K when 25 g of glucose is dissolved in 450 g of water.

The vapour pressure of water is 12.3 kPa at 300 K. Calculate vapour pressure of 1 molal solution of a non-volatile solute in it.

The vapour pressures fo pure liquids A and B are 450 mm Hg and 700 mm Hg respectively at 350K. If the total vapour pressure of the mixture of the two liquids at 350K is 600mm Hg, Calculate the more fractions of the two components in the solution. Also, calcuate the partial pressures of the two components in the vapour phase.

A solution of sucrose (molecular mass 342 u) is prepared by dissolving 6.84g in 100g of water at 298K. Calculate the osmotic pressure of the solution at 298K (Density of water at 298K + 1 g mL^-1 ).

100 g of liquid A (molar mass 140 g mol^-1) was dissolved in 1000g of liquid B (molar mass 180 g mol^-1) . The vapour pressure of pure liquid B was found to be 500 torr: Calculate the vapour pressure of pure liquid A and its vapour pressure in the solution if the total vapour pressure of the solution is 475 Torr.

A solution of sucrose (molecular mass 342 u) is prepared by dissolving 0.84 g in 100g of water at 298K. Calculate the boiling point of water in the solution (K_b for water = 0.52 K kg mol^-1)

A solution of sucrose (molecular mass 342 u) is prepared by dissolving 0.84g in100 g of water at 298 K. Calcuate the osmotic pressure of the solution at 298 K (Density of water at 298 K = 1 gmol^-1)

A solution of sucrose (molecular mass 342 u) is prepared by dissolving 6.84g in 100g of water at 298K. Calculate the freezing point of the solution ( K_f for water, 1.86K Kgmol^-1 ).