A solution is prepared by dissolving 1.8 g of a non-volatile solute in 90 g of water. The vapor pressure of the solution is found to be 23.375 mm Hg at 25°C. If the vapor pressure of pure water at 25°C is 23.76 mm Hg, what is the molar mass of the solute? (Molar mass of water = 18 g/mol)

The amount of urea dissolved in 500 cc of water $({K_f} = 1.86^\circ C)$ to produce a depression of $0.186^\circ C$ in the freezing point is

A solution of sucrose (molar mass=342 g/mol) is prepared by dissolving 68.4 g of it per litre of the solution, what is its osmotic pressure $(R = 0.082\;{\rm{L}}\;{\rm{ atm}}\;{{\rm{K}}^{ - 1}}\;{\rm{mo}}{{\rm{l}}^{ - 1}})$ ) at 273 K?

A cane sugar solution has an osmotic pressure of 2.46 atm at 300K. What is the strength of the solution.

The phenomenon in which cells are shrinked down if placed in hypertonic solution is called :

Van’thoff factor of $Ca{(N{O_3})_2}$ is

Observe the following abbrevations

${\pi _{obs}} =$ observed colligative property

${\pi _{cal}} =$ theoretical colligative property assuming normal behaviour of

solute.

Van’t Hoff factors (i) is given by

At high altitude the boiling of water occurs at low temp. because :

In the case of osmosis, solvent molecules move from :

The order of osmotic pressure of isomolar solution of $BaC{l_2},NaCl\;and\;sucrose$ is

The freezing point of $1\%$ solution of lead nitrate in water will be