The normal boiling point of Ethyl acetate is $77^\circ\text{C}$. A solution of non-volatile non-electrolyte solute in ethyl acetate boils at $78^\circ\text{C}$. $K_b$ for ethyl acetate is $2.77\ ^\circ\text{C kg mol}^{-1}$. What is the molality of the solution ?

18 g of glucose (molar mass = 180 g/mol) is dissolved in water to prepare 500 ml solution at $15^\circ\text{C}$. Calculate the osmotic pressure of the solution. [$R = 0.0821\ \text{L atm K}^{-1}\ \text{mol}^{-1}$]

For a binary solution, when a nonvolatile nonelectrolyte solute is dissolved in solvent, the vapour pressure of solvent decreases by 20 % . what is mole fraction of solvent in solution ?

Calculate the boiling point of an aqueous solution containing 18 g glucose in 100 g water if the molal elevation constant of water is $0.5\ \text{K kg mol}^{-1}$.
[Molar mass of glucose $= 180\ \text{g mol}^{-1}$ and boiling point of water $= 100\ ^\circ\text{C}$]