Recent questions tagged colligative-properties

Maximum freezing point will be for 1 molal solution of (assuming equal ionization in each case)

asked Jun 16, 2015 by varun28031999

0 answers

The van't Hoff factor of the compound $K_3Fe(CN)_6$ in dilute solution is

asked Aug 8, 2014 by meena.p

2 answers

The Van't Hoff factor of acetic acid in water will be

asked Aug 8, 2014 by meena.p

1 answer

The van't hoff factor for $0.1\; molal\;Ba(NO_3)_2$ solution is $ 2.74$. Its degree of dissociation is

asked Aug 8, 2014 by meena.p

1 answer

Which of following electrolytes would have the same van't hoff factor as that of potassium ferricyanide ?

asked Aug 8, 2014 by meena.p

1 answer

The Van't Hoff factor of benzoic acid in benzene is found to be

asked Aug 8, 2014 by meena.p

1 answer

The degree of dissociation $(\alpha)$ of a weak electrolyte $A_xB_y$ is related to van't Hoff factor (i) by the expression

asked Aug 8, 2014 by meena.p

1 answer

A $ 0.004\;M$ solution of $K_2SO_4$ is isotonic with a $0.010\;M$ Solution of glucose at the same temperature . Tge apparent per cent degree of dissociation of $K_2SO_4$ is

asked Aug 7, 2014 by meena.p

1 answer

Which of the following pairs of solutions are expected to be isotonic?

asked Aug 7, 2014 by meena.p

1 answer

In the phenomenon of osmosis through the semipermeable membrane

asked Aug 7, 2014 by meena.p

1 answer

The osmotic pressure of $0.1\;M$ sodium chloride solution at $27^{\circ}C$ is

asked Aug 7, 2014 by meena.p

1 answer

The osmotic pressure of a solution $(density =1.02\;g \;cm^{-3})$ Containing 50 g glucose $(C_6H_{12}O_6)$ in 1 kg of water at 300 K is

asked Aug 7, 2014 by meena.p

1 answer

A semipermeable membrane used in the measurement of osmotic pressure of a solution allows the passage of

asked Aug 7, 2014 by meena.p

1 answer

A solution containing $0.5\;g$ of a solute (molar mass 130 g\;mol^{-1})$ in $50 \;g\;CCl_4$ yields a boiling point elevation of boiling point . The molar mass of solute is about

asked Aug 7, 2014 by meena.p

1 answer

The solvent $CS_2$ has enthalpy of vapourization of $352\;J\;g^{-1}$ and boiling point equal to $320\;K$. The value of $K_b$ for this solvent is about.

asked Aug 7, 2014 by meena.p

1 answer

A solvent of molar mass $84.2 \;g\;mol^{-1}$ and boiling point $81.4^{\circ}C$ has boiling point elevation constant equal to $ 2.79 \;K\;kg\;mol^{-1}$. Its molar enthalpy of vapourization will be about

asked Aug 7, 2014 by meena.p

1 answer

A sucrose solution in 50 g water boils at $100.15^{\circ}C$ , If this solution is heated till its temperature is $100.375^{\circ}C$, how much of water is evaporated ? Given :$ K_b(water)=0.52\;K\;kg\;mol^{-1}$

asked Aug 7, 2014 by meena.p

1 answer

An involatile solute A dimerizes in a solvent as $2A \rightleftharpoons A_2$ . If m is the molarity of solute in the solution , then the equilibrium constant of the reaction is given as

asked Aug 6, 2014 by meena.p

1 answer

The elevation in boiling point when $20.16\;g$ of freshly prepared $CuCl_2$ (relative molar mass : $134.4$) is dissolved in $1\;kg$ of water $(K_b=0.52\;kg\;K \;mol^{-1})$ is

asked Aug 6, 2014 by meena.p

1 answer

When mercuric iodide is added to an aqueous solution of potassium iodide, the

asked Aug 6, 2014 by meena.p

1 answer

The elevation of boiling point of water produced by dissolving $1.17 g$ sodium chloride in $100 g$ water $K_b=0.512\;K\;kg\;mol^{-1})$ is

asked Aug 6, 2014 by meena.p

1 answer

The boiling point of water at $735$Torr is $99.07^{\circ}C$ . The mass of $NaCl$ added in $100\;g$ water $(K_b=0.51\;K\;kg\;mol^{-1})$ to make its boiling point $100^{\circ}C$ is

asked Aug 6, 2014 by meena.p

1 answer

For an ideal solution containing a nonvolatile solute, Which of the following expression is correctly represented ?

asked Aug 6, 2014 by meena.p

1 answer

Which of the following solvents has the largest value of $K_f$?

asked Aug 6, 2014 by meena.p

1 answer

The molar mass and the freezing point of camphor are $152.2\;g\;mol^{-1} $ and $178.4^{\circ} C $ respectively . The cryoscopic constant of camphor is $ 37.7\;K\;kg\;mol^{-1}$, the molar enthalpy of fusion of camphor is about

asked Aug 6, 2014 by meena.p

1 answer

If the freezing point depression constant of a solvent is $20.0\;K\;kg\;mol^{-1}$. If its $\Delta_{fus} H^0_m=2.74\;kJ\;mol^{-1}$ and its molar mass is $84.2\;g\;mol^{-1}$ the normal freezing point of the solvent would be about

asked Aug 6, 2014 by meena.p

1 answer

For water , $ \Delta _{fus} H^3_m=2.74 \;kJ\;mol^{-1}$ and its molar mass is $ 84.2\;g \;mol^{-1} $ the normal freezing point depression constant at 1 atm pressure would be about

asked Aug 6, 2014 by meena.p

1 answer

When $20\;g$ of naphthoic acid $(C_{11}H_gO_2)$ is dissolved in $50 \;g$ of benzene $(K_t =1.72\;K\;kg\;mol^{-1}).$, a freezing point depression of $2 K$ is observe. The van't Hoff factor (i) is

asked Aug 6, 2014 by meena.p

1 answer

The unit of freezing point depression constant is

asked Aug 6, 2014 by meena.p

1 answer

The freezing point of a $0.05$ molal solution of a nonelectrolyte in water is

asked Aug 6, 2014 by meena.p

1 answer

The molar mass of acetic acid dissolved in benzene determined from the depression in freezing point is found to be

asked Aug 6, 2014 by meena.p

1 answer

The freezing point of equimolal solution will be lowest for

asked Aug 6, 2014 by meena.p

1 answer

Which of the following exhibits the greater freezing - point lowering ?

asked Aug 6, 2014 by meena.p

1 answer

When a sugar- solution is slowly frozen, the first solid which separates out is

asked Aug 6, 2014 by meena.p

1 answer

Pure Benzene freezes at $5.4 ^{\circ}\;C$. A solution of $0.223 \;g$ of phenyl acetic acid $(C_6 H_5 CH_2 COOH)$ in $4.4\;g$ benzene $(K_f =5.12 K\; Kg\;mol^{-1}) $ freezes at $4.47 ^{\circ}$ . From this observation , one can conclude that

asked Aug 5, 2014 by meena.p

1 answer

Assuming $ 100\%$ ionization , the increasing order of the freezing point of the solution will be

asked Aug 5, 2014 by meena.p

1 answer

A solution contains $0.1 \; mol$ of acetamide in 1L of glacial acetic acid . When the solution is cooled , the first crystals that appeared at the freezing point contain the molecules of

asked Aug 5, 2014 by meena.p

1 answer

For an ideal solution containing a nonvolatile solute, Which of the following expression is correctly represented?

asked Aug 5, 2014 by meena.p

1 answer

The freezing point of equimolal aqueous solution will be highest for

asked Aug 5, 2014 by meena.p

1 answer

Which of the following $0.1 \;M$ aqueous solution will have the lowest freezing point ?

asked Aug 5, 2014 by meena.p

1 answer

When mercuric iodide is added to an aqueous solution of potassium iodide the

asked Aug 5, 2014 by meena.p

1 answer

$5 g$ of a nonvolatile compound (molar mass $50\; g \;mol^{-1}$) is added to 100 g of water . If the decrease of pressure is $11.31$ Torr, the vapour pressure of water will be

asked Aug 5, 2014 by meena.p

1 answer

The vapour pressure of a solvent is found to be $400 mm$ Hg at $300 K$ When a certain amount of nonvolatile solute added to $50\;mol$ of the solvent its vapour pressure decreases to $360\;mm Hg$. The amount of solute added is:

asked Aug 5, 2014 by meena.p

1 answer

The degree of dissociation $(\alpha)$ of a weak electrolyte $A_xB_x$ is related to Van't hoff factor (i) by the experiment

asked Jul 18, 2014 by sreemathi.v

1 answer

A solution contains 0.1 mol of acetamide in 1 L of glacial acetic acid.When the solution is cooled the first crystals that appeared at the freezing point contain the molecules of

asked Jul 18, 2014 by sreemathi.v

1 answer

The freezing point of equimolal aqueous solutions will be highest for

asked Jul 17, 2014 by sreemathi.v

1 answer

Which of the following 0.1M aqueous solutions will have the lowest freezing point?

asked Jul 17, 2014 by sreemathi.v

1 answer

Ask Questions, Get Answers