Calculate the vapour pressure of an aqueous solution containing 5% by mass of urea `(NH_2CON_2)` at 298K. The vapour pressure of water at 298K is 23.75 mm Hg.

Urea forms an ideal solution in water. Determine the vapour pressure of an aqueous solution contianing 10% by mass of urea at 40^@C . (Vapour pressur of water at 40^@C =55.3 mm of Hg)

The vapour pressure of an aqueous solution of glucose is 750 mm of mercury at 100^@ C . Mole fraction of solute will be

If the vapor pressure of a dilute aqueous solution of glucose is 750 mm of Hg at 373 K , then molality of solute is

1.0 gram of a non-volatile solute was dissolved in 100 gram of acetone (molecular mass = 58) at 298 K. The vapour pressure of solution was found to be 192.5 mm of Hg. Calculate the molecular mass of solute. The vapour pressure of pure acetone at 298 K is 195 mm of Hg.

100 g of liquid A (molar mass 140 g mol^(-1) was dissolved in 1000 g 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.

Vapour pressure of chloroform (CHCI_3) and dichloromethane (CH_2CI_2) at 298 K are 200 mm Hg and 415 mm Hg respectively. (i) Calculate the vapour pressure of the solution prepared by mixing 25.5 g of CHCI_3 and 40 g of CH_2CI_2 at 298 K and (ii) mole fractions of each component in vapour phase.

Vapour pressure of chlolfom (CHCI_(3)) and dichloromethane (CH_(2) CI_(2)) at 298 K are 200 mm Hg and 415 mm Hg respectively. Calculate the vapour pressure of the solution prespared by miximng 25 g of CHCI_(3) and 45 g of CH_(2) CI_(2) at 298 K. Also find the mole fraction of CHI_(3) in the vapour phase .

The total vapour pressure of a 4 mole % solution of NH_(3) in water at 293 K is 50.0 torr. The vapour pressure of pure water is 17.0 torr at this temperature . Applying Henry's and Raoult's laws, calcilate the total vapour pressure for a 5 mole % solution:

The lquid A and B from ideal solutions. At 300 K, the vapour pressure of solution containing 1 mole of A and 3 mole of B is 550 mm Hg. At the same tempreature, if one more mole of B is added to this solution, the vapour pressure of the solution increases by 10 mm Hg. determinethe vapour pressure of A and B in their pure states (in mm Hg):

The degree of dissociation of Ca(NO_3)_2 in dilute aqueous solution containing 7.0 g of the salt per 100 g of water at 100^@C is 70 percent. If the vapour pressure of water at 100^@C is 760 mm, calculate the vapour pressure of the solution.