(a) (i) Ishan's automobile radiator is filled with 1.0 kg of water. How many grams of ethylene glycol (Molar mass =62 g mol^-1 ) must Ishan add to…

Ishan's automobile radiator is filled with $\displaystyle 1.0$ kg of water. How many grams of ethylene glycol (Molar mass $\displaystyle =62 \mathrm{~g} \mathrm{~mol}^{-1}$ ) must Ishan add to get the freezing point of the solution lowered to - $\displaystyle 2.8$ °C. $\displaystyle \mathrm{K}_{\mathrm{f}}$ for water is $\displaystyle 1.86 \mathrm{~K} \mathrm{~kg} \cdot \mathrm{~mol}^{-1}$.

What type of deviation from Raoult's law is shown by ethanol and acetone mixture ? Give reason.

Boiling point of water at $\displaystyle 750$ mm Hg pressure is $\displaystyle 99.68^{\circ} \mathrm{C}$. How much sucrose (Molar mass $\displaystyle =342 \mathrm{~g} \mathrm{~mol}^{-1}$ ) is to be added to $\displaystyle 500$ g of water such that it boils at $\displaystyle 100$ °C ? ( $\displaystyle \mathrm{K}_{\mathrm{b}}$ for water $\displaystyle =0.52 \mathrm{~K} \mathrm{~kg}$ $\displaystyle \left.\mathrm{mol}^{-1}\right)$.

State Henry's law and write its any one application.