Liquid Solution

Which of the following solutions on complete dissociation exhibits maximum elevation in boiling point?

What is the relation between the vapour pressure of solution, vapour pressure of solvent and its mole fraction in the solution?

Calculate $\Delta \mathrm{T}_{\mathrm{f}}$ of aqueous 0.01 m formic acid if van't Hoff factor is 1.1
\(\left[\mathrm{K}_{\mathrm{f}}=1.86 \mathrm{~K} \mathrm{~Kg} \mathrm{~mol}^{-1}\right]\)

Calculate the molar mass of solute when 4 g of it dissolved in $1 \mathrm{dm}^3$ solvent has osmotic pressure 2 atm at 300 K . [R $\left[=0.082 \mathrm{~dm}^3 \mathrm{~atm} \mathrm{~K} \mathrm{~mol}^{-1}\right]$

Calculate the molar mass of nonvolatile solute when 1.5 g of it is dissolved in 90 g solvent decreases its freezing point by 0.25 K.
\(\left[\mathrm{K}_{\mathrm{f}}=1.2 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right]\)

Which from the following statements is correct for aqueous solution of $6 \mathrm{~g} \mathrm{~L}^{-1}$ urea and $17 \cdot 12 \mathrm{~g} \mathrm{~L}^{-1}$ of sucrose?
[Molar mass of urea $=60 \mathrm{~g} \mathrm{~mol}^{-1}$
Molar mass of s...

A solution of non volatile solute has boiling point elevation 1.75 K .
Calculate molality of solution $\left[\mathrm{K}_{\mathrm{b}}=3.5 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right]$

Which of the following equation correctly represents molar mass of a solute by knowing boiling point elevation?

What mass of solute (molar mass $58 \mathrm{~g} \mathrm{~mol}^{-1}$) is to be dissolved in $2.5 \mathrm{~dm}^3 \mathrm{~H}_2 \mathrm{O}$ to generate osmotic pressure of 0.245 atm at 300 K ?
$$\left(\mathrm{R}=0.0821 \mathrm{~dm}^3 \text { a...

The molal elevation boiling point constant for water is $0.513^{\circ} \mathrm{C} \mathrm{Kg} \mathrm{mol}^{-1}$.
Calculate boiling point of solution if 0.1 mole of sugar is dissolved in 200 g water?

A solution of non volatile solute is obtained by dissolving 2 g in 50 g benzene. Calculate the vapour pressure of solution if vapour pressure of pure benzene is 640 mmHg at $25^{\circ} \mathrm{C}$.
[mol. mass of benzene $=78 \mathrm{~g} \ma...

Identify an example of solution that consists of solid as solute and liquid as solvent.

Calculate the molality of solution of non volatile solute having depression in freezing point 0.93 K and cryoscopic constant of solvent $1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$.

Identify false statement form following.

Calculate the molar mass of non volatile solute when 5 g of it is dissolved in 50 g solvent, boils at $119.6^{\circ} \mathrm{C}$.
$\left[\mathrm{K}_{\mathrm{b}}=3.2 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right.$, boiling point of pure ...

Calculate van't Hoff factor of 0.2 m aquesous solution of an electrolyte if it freezes at $-$0.7 K $\left[\mathrm{K}_{\mathrm{f}}=1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right]$

Calculate van't Hoff factor of 0.15 M solution of electrolyte if it freezes at $-$0.5 K.
\(\left[\mathrm{K}_{\mathrm{f}}=1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right]\)

Calculate the relative lowering of vapour pressure of solution containing 46 g of non volatile solute in 162 g of water at $20^{\circ} \mathrm{C}$.
[Molar mass of nonvolatile solute $=46 \mathrm{~g} \mathrm{~mol}^{-1}$]

Identify the correct statement from following properties.

Calculate the molality of solution if its depression in freezing point is 0.18 K . $\left[\mathrm{K}_{\mathrm{f}}=1.6 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right]$

Calculate the relative lowering of vapour pressure if vapour pressure of pure solvent and vapour pressure of solution at $25^{\circ} \mathrm{C}$ are 32 and 30 mm Hg respectively.

What type of solution is the iodine in air?

A solution of nonvolatile solute is obtained by dissolving 0.8 g in $0.3 \mathrm{dm}^3$ water has osmotic pressure 0.2 atm at 300 K . Calculate the molar mass of solute.
$$\left[\mathrm{R}=0.082 \mathrm{~atm} \mathrm{dm}^3 \mathrm{~K}^{-1} ...

What is the expected value of $\Delta T_f$ for $1.25 \mathrm{~m} \mathrm{CaCl}_2$ solution if 1.25 m sucrose solution has $\Delta \mathrm{T}_{\mathrm{f}}$ value x K ?

Calculate Henry's law constant if solubility of gas in water at $25^{\circ} \mathrm{C}$ is $5.14 \times 10^{-4} \mathrm{~mol} \mathrm{dm}^{-3}$ and partial pressure of the gas is 0.75 bar above solution.

Calculate molar mass of a solute at 300 K if 400 mg of it is dissolved in 300 mL of water exerts osmotic pressure of 0.2 atm .
\(\left(\mathrm{R}=0.0821 \mathrm{~L} \mathrm{~atm} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)\)

Carbonated water is an example of a solution of

What is the vapour pressure of a solution containing 0.1 mol of non volatile solute dissolved in 16.2 g water? $\left(\mathrm{P}_1^0=24 \mathrm{mmHg}\right.$, molar mass of water $18 \mathrm{~g} \mathrm{~mol}^{-1}$ )

Vapour pressure of a pure solvent is 550 mm of Hg . By addition of a non volatile solute it decreases to 510 mm of Hg . Calculate the mole fraction of solute in solution.

Calculate van't Hoff factor (i) of 0.2 m aqueous solution of an electrolyte if it freezes at $-0.660 \mathrm{~K} .\left(\mathrm{K}_{\mathrm{f}}=1.84 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right)$

Identify the false statement among the following.

In a solution, mole fraction of solute is 0.2 , when lowering in vapour pressure is 10 mm Hg . To get lowering of vapour pressure of 20 mm Hg , mole fraction of solute in solution is

The solution containing $18 \mathrm{~g} \mathrm{dm}^{-3}$ glucose (molar mass 180) in water and another containing $6 \mathrm{~g} \mathrm{dm}^{-3}$ of solute A in water boils at same temperature. What is molar mass of A ?

If $P_1$ partial pressure of a gas and $x_1$ is its mole fraction in a mixture, then correct relation between $P_1$ and $x_1$ is

Which of the following solutions will not show flow of solvent in either direction when separated by semipermeable membrane?

0.1 molal aqueous solution of glucose boils at $100.16^{\circ} \mathrm{C}$. What is boiling point of 0.5 molal aqueous solution of glucose?

0.2 molal aqueous solution of KCl freezes at $-0.680^{\circ} \mathrm{C}$. Calculate van't Hoff factor for this solution. $\left(\mathrm{K}_{\mathrm{f}}=1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right)$

Calculate molar mass of nonvolatile solute if a solution containing 0.35 g solute in 100 g water has boiling point elevation 0.01 K $\left[\mathrm{K}_{\mathrm{b}}=0.50 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right.$ ]

Which from following ionic solids exhibits decrease in its solubility in water with increase of temperature?

Calculate the solubility of a gas having partial pressure 0.15 bar at $25^{\circ} \mathrm{C}$.
$\left[\mathrm{K}_{\mathrm{H}}=0.16 \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{bar}^{-1}\right]$

A solution of nonvolatile solute is obtained by dissolving \(3.5 \mathrm{~g}\) in \(100 \mathrm{~g}\) solvent has boiling point elevation \(0.35 \mathrm{~K}\). Calculate the molar mass of solute.
(Molal elevation constant $$=2.5 \mathrm{~K}...

\(0.2 ~\mathrm{M}\) aqueous solution of glucose has osmotic pressure 4.9 atm at \(300 \mathrm{~K}\). What is the concentration of glucose if it has osmotic pressure \(1.5 \mathrm{~atm}\) at same temperature?

Which among the following gases exhibits very low solubility in water at room temperature?

A solution of nonvolatile solute is obtained by dissolving \(1 \mathrm{~g}\) in \(100 \mathrm{~g}\) solvent, decreases its freezing point by \(0.3 \mathrm{~K}\). Calculate cryoscopic constant of solvent if molar mass of solute is $$60 \math...

Which from the following compound solutions in water of equal concentration has electrical conductivity nearly same as distilled water?

A solution of \(8 \mathrm{~g}\) of certain organic compound in \(2 ~\mathrm{dm}^3\) water develops osmotic pressure \(0.6 \mathrm{~atm}\) at \(300 \mathrm{~K}\). Calculate the molar mass of compound. [R = 0.082 atm dm\(^3\) K\(^{-1}\) mol$$...

Which among the following is NOT colligative property?

Calculate the depression in freezing point of solution when \(4 \mathrm{~g}\) nonvolatile solute of molar mass \(126 \mathrm{~g} \mathrm{~mol}^{-1}\) dissolved in \(80 \mathrm{~mL}\) water [Cryoscopic constant of water $$=1.86 \mathrm{~K} \...

Calculate the relative lowering of vapour pressure if the vapour pressure of benzene and vapour pressure of solution of non-volatile solute in benzene are \(640 \mathrm{~mmHg}\) and \(590 \mathrm{~mmHg}\) respectively at same temperature.

What type of following solutions is the gasoline?