Van't Hoff Factor

Select the correct statements:

Acetic acid undergoes dimerisation in benzene, the van't Hoff factor $\left(\mathrm{i}\right)$ is related to degree of association of acid $\left(\mathrm{\alpha }\right)$, as

Which of the following aqueous solutions have higher freezing point?

If the degree of dissociation of aqueous solution of weak monobasic acid is determined to be $0.3$, then the observed freezing point will be _____ $\%$ higher than the expected/theoretical freezing point. (Nearest integer).

The degree of dissociation of monobasic acid is $0.3$, By what percent is the observed depression in freezing point greater than the calculated depression in freezing point?

How many of the following have same Relative lowering vapour pressure?

(A) $1\mathrm{M} \mathrm{NaCl}$ 

(B) $1.5 \mathrm{M} {\mathrm{AlCl}}_3$

(C) $1\mathrm{M} \mathrm{urea}$

(D) $2\mathrm{M} {\mathrm{Na}}_2{\mathrm{SO}}_4$

Which has highest freezing point :

Vant hoff factor is dependent or independent of Concentration?

The Van't Hoff's factor$\left(\mathrm{i}\right)$ for a $0.2$ molal aqueous solution of urea is _____

$72.5 \mathrm{g}$of phenol dissolved in $1\mathrm{kg}$ solvent $\left({\mathrm{k}}_{\mathrm{f}}=14\right)$. If depression in freezing point is $7\mathrm{K}$. Find the %phenol that dimerised.

Round off your answer to the nearest integer.

The freezing point of $0.2 \mathrm{M} \mathrm{HA}$ acid is $-0.558°\mathrm{C}$. The dissociation constant of acid is

Given: ${\mathrm{k}}_{\mathrm{f}}=1.86 °\mathrm{C}/\mathrm{m}$

What is degree of association ?

A quantity of $1.04 \mathrm{g}$ of ${\mathrm{CoCl}}_3.6{\mathrm{NH}}_3\left(\mathrm{Molecular} \mathrm{weight}=267\right)$ was dissolved in $100 \mathrm{g} \mathrm{of} {\mathrm{H}}_2\mathrm{O}$. The freezing point of the solution was $-0.{29}^{\circ }\mathrm{C}$. How many moles of solute particle exist in the solution for each mole of solute introduced? ${\mathrm{K}}_{\mathrm{f}}$ for water $=1.{86}^{\circ }\mathrm{C} {\mathrm{m}}^{-1}$

Van't Hoff factor in case of $50\%$ dissociation of ${\mathrm{PCl}}_5$ is :

The osmotic pressure of $0.5\mathrm{M}$ aqueous solution of ${\mathrm{CH}}_3\mathrm{COOH}$ having $\mathrm{pH} = 2$ at temperature $\mathrm{T}$ is _____

In terms of osmotic pressure $\left(\mathrm{\pi }\right)$, volume of the solution$\left(\mathrm{V}\right)$ containing $\mathrm{n}$ moles of the solute, and van't Hoff factor $\mathrm{i}$ at a temperature $\mathrm{T}$, osmotic pressure $\mathrm{\pi }=\frac{\mathrm{n}}{\mathrm{V}}\times$_____.

If Van't Hoff factor is less than unity, this shows that solute undergoes _____ in the solution.

$\mathrm{Out} \mathrm{of} \mathrm{the} \mathrm{following} \mathrm{three} \mathrm{solutions}, \mathrm{which} \mathrm{has} \mathrm{the} \mathrm{highest} \mathrm{freezing} \mathrm{point} \mathrm{and} \mathrm{why} ? \left(\mathrm{i}\right) 0.1 \mathrm{M} \mathrm{Urea} \left(\mathrm{ii}\right) 0.1 \mathrm{M} \mathrm{Barium} \mathrm{phosphate} \left(\mathrm{iii}\right) 0.1 \mathrm{M} \mathrm{Sodium} \mathrm{sulphate}$

$\mathrm{Out} \mathrm{of} \mathrm{the} \mathrm{following} \mathrm{three} \mathrm{solutions}, \mathrm{which} \mathrm{has} \mathrm{the} \mathrm{Lowest} \mathrm{boiling} \mathrm{point} \mathrm{and} \mathrm{why} ? \left(\mathrm{i}\right) 1 \mathrm{M} \mathrm{Glucose} \left(\mathrm{ii}\right) 1 \mathrm{M} \mathrm{Potassium} \mathrm{chloride} \left(\mathrm{iii}\right) 1 \mathrm{M} \mathrm{Aluminium} \mathrm{nitrate}$

$\mathrm{Out} \mathrm{of} \mathrm{the} \mathrm{following} \mathrm{three} \mathrm{solutions}, \mathrm{which} \mathrm{has} \mathrm{the} \mathrm{lowest} \mathrm{freezing} \mathrm{point} \mathrm{and} \mathrm{why} ? \left(\mathrm{i}\right) 0.1 \mathrm{M} \mathrm{Urea} \left(\mathrm{ii}\right) 0.1 \mathrm{M} \mathrm{Barium} \mathrm{phosphate} \left(\mathrm{iii}\right) 0.1 \mathrm{M} \mathrm{Sodium} \mathrm{sulphate}$