Van't Hoff Factor

Select the correct statements:

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

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

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

Consider $0.1 \mathrm{M}$ solutions of two solutes $\mathrm{X}$ and $\mathrm{Y}$. The solute $\mathrm{X}$behaves univalent strong electrolyte while the solute $\mathrm{Y}$dimerises completely in solution. Which of the following statements are correct regarding these solutions?

Which of the following is the correct value of degree of association $\left(\mathrm{\alpha }\right)$ in terms of van't Hoff factor ($i$) is:

Which of the following is the correct value of degree of dissociation $\left(\mathrm{\alpha }\right)$ in terms of van't Hoff factor ($i$) is:

Van't Hoff factor is the ratio of abnormal molar mass to the normal molar mass.

Integral value of van't hoff factor for ${\mathrm{K}}_2{\mathrm{SO}}_4$:

Which of the following aqueous solution has the highest freezing point?

The value of observed and calculated molecular weight of calcium nitrate are $65$ and $164$. The degree of dissociation of $\mathrm{Ca}{\left({\mathrm{NO}}_3\right)}_2$ will be:-

Colligative properties are directly proportional to the molar mass of the solute.

The partial dissociation appears to be a major factor in determining the properties of weak electrolytes and the degree of dissociation for weak electrolyte at dilution v is given by $\text{α}=\frac{{\text{Λ}}_{\text{v}}}{{\text{Λ}}_{\infty }}$. The strong electrolytes on the other hand do not obey this relation and the variation of molar conductivity for strong electrolytes is given by ${\text{Λ}}_{\text{v}}={\text{Λ}}_{\infty }-{\text{bc}}^{1/2}$.

The graph plotted for log ($\text{i-1}$)vs. log ${\text{Λ}}_{\text{v}}$, where i is van't Hoff factor for uni-univalent electrolyte and ${\text{Λ}}_{\text{v}}$, is its molar conductivity at concentration c does not show the following characteristics:

The van’t Hoff factor $\mathrm{i}$ for a compound which undergoes dissociation in one solvent and association in another solvent is respectively

Van’t Hoff factor $\mathrm{i}$ is given by the expression _____.

Which of the following $0.1 \mathrm{M}$ aqueous solutions will exert highest osmotic pressure?

Derive the equation:

$\mathrm{\alpha }=\frac{\mathrm{M} \left(\mathrm{theoretical}\right)-\mathrm{M} \left(\mathrm{observed}\right)}{\mathrm{M} \left(\mathrm{observed}\right) \left(\mathrm{n}\text{'}-1\right)}$

Derive the equation:

$\mathrm{\alpha }=\frac{\mathrm{i}-1}{\mathrm{n}\text{'}-1}$

Explain: Van't Hoff factor

Explain: Abnormal molecular masses

Explain abnormal osmotic pressure.