Weight of non-volatile solute urea neede to be dissolved in 90 gm of water in order to decrease the vapour pressure by `25%` . The answer after dividing with 20 is

The weight of urea to be dissolved in 100 g. of water to decrease the vapour pressure of water by 5% is

What weigth of a non-volatile solute (molar mass 40 g) should be dissolved in 114 g of octance to reduce its vapour pressure by 20%.

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

6 g. of a non volatile solute is dissolved in 90g. of water, such that the lowering in vapour pressure is 2%. The molecular weight of the solute is

When 25 g of a non-volatile solute is dissolved in 100g of water, the vapour pressure is lowered by 2.25 xx 10^(-1)mm . If the vapour pressure of water at 20^(@)C is mm, what is the molecular weight of the solute?

6 g of urea is dissolved in 90g of boiling water. The vapour pressure of the solution is

Weight of solute (M. wt 60) that is required to dissolve in 180 g water to redure the vapour pressure to 4//5th of pure water is 50x g . X is

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

When some amount of non-volatile solute is dissolved in a solvent to prepare a dilute solution, the vapour pressure of the solvent is lowered and it is directly proportional to the mole fraction of solvent in the solution . Relative lowering in vapour pressure is equal to mole fraction of solute . Elevation in boiling point of solvent is a collgative property like lowering in vaour pressure of solvent in solution , K_(b) i.e., molal elevation constant is calculated by the formula, K_(b)=DeltaT_(b)// molality and also by the expression, K_(b)=RT_(b)^(2)//1000l_(v) where T_(b) is boiling point of solvent and I_(v) is latent heat of vapourisation for 1 gm solvent . Abnormal elevation is boiling point =iX elevation in boiling point in ideal solution where i=van't Hoff factor Lowering in vapour pressure in an experiment was found to be x mm of Hg. It is : Lowering in vapour pressure in an experiment was found to be x mm of Hg. It is