Embibe Experts Solutions for Chapter: Solutions, Exercise 1: TS EAMCET 2018 (04-May Shift-1)

If the density of a $2\mathrm{M}$ solution of ethylene glycol in water is $1.11\mathrm{g}/\mathrm{ml},$ the molality (in $\mathrm{m}$) of the solution is approximately

How many grams of glucose are required to prepare an aqueous solution of glucose having a vapor pressure of $23.324 \mathrm{mm} \mathrm{Hg}$ at $25°\mathrm{C}$ in $100 \mathrm{g}$ of water? The vapour pressure of pure water at $25°\mathrm{C}$ is $23.8 \mathrm{mm} \mathrm{Hg}.$

Given
Sol A: Phenol and aniline
Sol B : Chloroform and acetone
Which of following is correct as per Raoult's law?

A $3\mathrm{ml}$ of solution was made by dissolving $20\mathrm{mg}$ of protein at $0°\mathrm{C}.$ The osmotic pressure of the resulting solution is $3.8$ torr. The molecular weight of the protein is approximately (in $\mathrm{g}/\mathrm{mol}$)

When salt is added to water, which of the following statement is true?

Match the following.

The correct match is

On mixing urea, the boiling point of ${\mathrm{H}}_2\mathrm{O}$ changed to $100.5{}^{\circ }\mathrm{C}.$ Calculate the freezing point of the solution, if ${\mathrm{K}}_{\mathrm{f}}$ of water is $1.87 \mathrm{K}.\mathrm{kg}.{\mathrm{mol}}^{-1}$ and ${\mathrm{K}}_{\mathrm{b}}$ of water is $0.52 \mathrm{K}·\mathrm{kg}.{\mathrm{mol}}^{-1}$

If $0.1 \mathrm{M}$ solution of $\mathrm{NaCl}$ is isotonic with $1.1\mathrm{w}\%$ urea solution, the degree of ionisation of $\mathrm{NaCl}$ is (Molar masses of urea and $\mathrm{NaCl}$ are $60$ and $58.5 \mathrm{g} {\mathrm{mol}}^{-1}$, respectively.)