The observed freezing point depression of a 0.01 m aqueous solution of a weak acid HA is 0.0205 °C. If the $K_f$ of water is 1.86 K kg/mol, which expression correctly calculates the percent ionization of the weak acid?

During osmosis, flow of water through a semipermeable membrane is :

Which of the following solutions will have highest boiling point

When 20 g of naphthoic acid $({C_{11}}{H_8}{O_2})$ is dissolved in 50 g of benzene $({k_f} = 1.72\;K\;{\rm{kg}}\;{\rm{ mo}}{{\rm{l}}^{ - 1}})$, a freezing point depression of 2 K is observed. The van’t Hoff factor (i) is

Boiling point of water is defined as the temperature at which :

The osmotic pressure of a solution at $0^\circ C$ is 2 atm. What will be its osmotic pressure at $273^\circ C$ under similar conditions?

The osmatic pressure of a 5% (wt./vol) solution of cane sugar at $150^\circ C$ is

The phenomenon in which cells are swelled up and then burst if placed in hypotonic solution is called :

Y g of non-volatile organic substance of molecular mass M is dissolved in 250 g benzene. Molal elevation constant of benzene of ${{K_b}}$. Elevation in its boiling point is given by :

At certain temperature a 5.12% solution of cane sugar is isotonic with a 0.9% solution of an unknown solute. The molar mass of solute is

${{K_f}}$ for water is ${1.86\;K\;kg\;{\rm{mo}}{{\rm{l}}^{ - 1}}}$. If your automobile radiator holds 1.0 kg of water, how many grams of ethylene glycol $\left( {{{\rm{C}}_2}{{\rm{H}}_6}{{\rm{O}}_2}} \right)$ must you add to get the freezing point of the solution lowered to ${\rm{ - 2}}{\rm{.8}}^\circ {\rm{C}}$?