Insulin ${\left( {{{\rm{C}}_2}{{\rm{H}}_{10}}{{\rm{O}}_5}} \right)_n}$ is dissolved in a suitable solvent and the osmotic pressure $\left( {\rm{\pi }} \right)$ of solutions of various concentrations $C\left( {{\rm{g}}/{\rm{c}}{{\rm{m}}^3}} \right)$ is measured at $20^\circ C$. the slope of a plot of ${\rm{\pi }}$ against $C$ is formed to be $4.65 imes {10^{ - 3}}$. The molecular weight of the insulin is :

Insulin ${\left( {{{\rm{C}}_2}{{\rm{H}}_{10}}{{\rm{O}}_5}} \right)_n}$ is dissolved in a suitable solvent and the osmotic pressure $\left( {\rm{\pi }} \right)$ of solutions of various concentrations $C\left( {{\rm{g}}/{\rm{c}}{{\rm{m}}^3}} \right)$ is measured at $20^\circ C$. the slope of a plot of ${\rm{\pi }}$ against $C$ is formed to be $4.65 imes {10^{ - 3}}$. The molecular weight of the insulin is :

Which colligative property is responsible for the anti-freeze action of ethylene glycol in car radiators?

Beckmann thermometer are used to measure :

The freezing point depression of $0.001\;m$, ${{\rm{K}}_x}\left[ {{\rm{Fe}}{{\left( {{\rm{CN}}} \right)}_6}} \right]$ is $7.10 imes {10^{ - 3}}\;K\;$. If for water, ${k_f}\;is\;1.86\;K\;kg\;\;{\rm{mo}}{{\rm{l}}^{ - 1}}$, value of x will be

A solution's osmotic pressure ($\Pi$) is plotted against its concentration in $\mathrm{mol\ L^{-1}}$. The resulting straight line has a slope of $20.58 \mathrm{L\ bar\ mol^{-1}}$. If the ideal gas constant R is $0.083 \mathrm{L\ bar\ mol^{-1}\ K^{-1}}$, at what temperature was the osmotic pressure measured?

A solution of protein (extracted from crabs) was prepared by dissolving 0.75 g in $125\;{\rm{c}}{{\rm{m}}^3}$ of an aqueous solution. At $4^\circ C$ an osmotic pressure rise of 2.6 mm of the solution was observed. Then molecular weight of protein is : (Assume density of solution is $1.00\;g/{\rm{c}}{{\rm{m}}^3}$)

The freezing point of aqueous solution that contains $5\%$ by mass urea, $1.0\%$ by mass KCl and $10\%$ by mass of glucose is $({K_f}{{\rm{H}}_2}{\rm{O}} = 1.86\;{\rm{K}}\;{\rm{ molalit}}{{\rm{y}}^{ - 1}})$

Solutions A, B, C and D are respectively 0.1 M glucose, $0.05\;M{\rm{ }}NaCl,$ $0.05\;M\;{\rm{BaC}}{{\rm{l}}_2}$ and $0.1\;M\;\;{\rm{AlC}}{{\rm{l}}_3}{\rm{.}}$ Which one of the following pairs is isotonic?

Elevation in boiling point was $0.52^\circ C$ when ${6\;g}$ of a compound was dissolved in $100\;g$ of water. Molecular weight of $X$ is (${k_b}$ of water is $5.2^\circ C$ per 100 g water )

At $100^{\circ}C$, the vapour pressure of a solution of $8g$ of a solute in $100g$ water is $740mm$. If $K_b = 0.52$, what is the boiling point of this solution?