A solution is prepared by dissolving 10 g of nonvolatile solute in 180 g of `H_2O`. If the relative lowering of vapour pressure is 0.005, find the mol. wt. of the solute.

Relative lowering of vapour pressure is equal to __________in solution.

Why Raoults law for relative lowering of vapour pressure is not applicable for concentrate solution?

A solution of one mole of benzoic acid in 15 moles of benzene produces a relative lowering in vapour pressure of 1/31. The mol. wt. of benzoic acid is

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 containing 30 g of non-volatile solute exactly in 90 g of water has a vapour of 2.8 kPa at 298 K. Further, 18g of water is then added to the solution and the new vapour pressure becomes 2.9 kPa at 298 K. Calculate, molar mass of the solute

For a dilute solution containing 2.5 g of a non-volatile non-electrolyte solute in 100 g water, the elevation of boiling point at 1 atm pressure is 2°C. Assuming concentration of solute is much lower than the concentration of solvent, determine the vapour pressure (mm Hg) of the solution. [Given: k_b for water = 0.76K-kg- mol^(- 1) ]

For a dilute solution containing 2.5 g of a non- volatile non-electrolyte solute in 100 g of water, the elevation in boiling point at 1 atm pressure is 2^@C Assuming concentration of solute is much lower than the concentration of solvent, the vapour pressure (mm of Hg) of the solution is (take k_b = 0.76 K kg mol^(-1)) .

The mass of glucose that should be dissolved in 100 g of water in order to produce same lowering of vapour pressure as is produced by dissolving 1 g of urea in 50 g of water is