What is relative lowering of vapour pressure ?

What is the relative lowering of vapour pressure ? How is it useful in determining the molecular weight of solute ?

Calculate the relative lowering of vapour pressure of a 10% aqeous caustic soda solution.

18 g of glucose is dissolved in 90 g of water. The relative lowering of vapour pressure of the solution is equal to

The relative lowering of vapour pressure is equal to

Derive the relation between relative lowering of vapour pressure and molar mass of solute.

The relative lowering of vapour pressure of 0.2 molal solution in which the solvent is Benzene is

At a given temperature (a) Vapour pressure of a solution containing nonvolatile solute is proportional to mole fraction of solvent (b) Lowering of vapour pressure of solution containing nonvolatile solute is proportional to mole fraction of solute (c) Relative lowering of vapour pressure is equal to mole fraction of solute

The weight in grams of a non-volatile solute (mol.wt.60) to be dissolved in 90g of water to produce a relative lowering of vapour pressure of 0.02 is

The weight in grams of a non-volatile solute (mol.wt.60) to be dissolved in 90 g of water to produce a relative lowering of vapour pressure of 0.02 is