
The vapour pressure of a solution of a weak base in water at is Calculate for the base. Aqueous tension at . (Give answer as )
[Hint
Then apply and ]


Important Questions on Dilute Solution and Colligative Properties
In an Ostwald-Walker experiment, dry air was first blown through a solution containing a certain amount of solute in of water and then also through pure water. The loss in mass of water was found to be , while the mass of water absorbed in sulphuric acid was . Calculate the amount of the solute.
Give your answer up to two decimal places without rounding-off.


The vapour pressure of pure water at is , What will be the vapour pressure of a solution of of urea in of water?
Give your answer up to two decimal places.





The osmotic pressure of a solution is given by which of the following relation?
( is the concentration in )
