Recent questions in Solutions

For a dilute solution containing a nonvolatile solute,the molar mass of solute evaluated from the osmotic pressure measurement is given as

asked Jul 17, 2014 by sreemathi.v

1 answer

For a dilute solution containing a nonvolatile solute,the molar mass of solute evaluated from the elevation of boiling point is given by the expression

asked Jul 17, 2014 by sreemathi.v

1 answer

For a dilute solution containing a nonvolatile solute,which of the following expressions correctly represents the molar mass of solute ?

asked Jul 17, 2014 by sreemathi.v

1 answer

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

asked Jul 17, 2014 by sreemathi.v

1 answer

For an ideal binary liquid solution with $p_A^* > p_B^*$,which of the following relations between $x_A$ (mole fraction of A in liquid phase) and $y_A$ (mole fraction of A in vapour phase) is correctly represented?

asked Jul 17, 2014 by sreemathi.v

1 answer

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

asked Jul 17, 2014 by sreemathi.v

1 answer

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

asked Jul 17, 2014 by sreemathi.v

1 answer

For an ideal solution containing a nonvolatile solute,which of the following expressions represents the vapour pressure of the solution?(where the subscripts 1 and 2 stand for solvent and solute, respectively)

asked Jul 17, 2014 by sreemathi.v

1 answer

The plot of $1/x_A$ versus $1/y_A$ (where $x_A$ and $y_A$ are the mole fractions of A in liquid and vapour phases,respectively) is linear with slope and intercept respectively are given as

asked Jul 17, 2014 by sreemathi.v

1 answer

Which of the following plots correctly represents the behaviour of an ideal binary liquid solution?

asked Jul 17, 2014 by sreemathi.v

1 answer

Which of the following plots represents the behaviour of an ideal binary liquid solution ?

asked Jul 17, 2014 by sreemathi.v

1 answer

Which of the following plots does not represent the behaviour of an ideal binary liquid solution?

asked Jul 17, 2014 by sreemathi.v

1 answer

For a binary ideal liquid solution,the total pressure of the solution is given as

asked Jul 17, 2014 by sreemathi.v

1 answer

The expression relating mole fraction of solute $(x_2)$ and molarity $(M)$ of the solution is (where $\rho$ is the density of solution,$M_1$ and $M_2$ are the molar masses of solvent and solute,respectively)

asked Jul 17, 2014 by sreemathi.v

1 answer

The expression relating molality (m) and mole fraction of solute $(x_2)$ in a solution is (where $M_1$ is the molar mass of solvent)

asked Jul 17, 2014 by sreemathi.v

1 answer

The expression relating molarity (M) and molality (m) of a solution is (where $\rho$ is the density of solution and $M_2$ is the molar mass of solute)

asked Jul 17, 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

In which mode of expression the concentration of a solution remains independent of temperature ?

asked Jul 17, 2014 by sreemathi.v

1 answer

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

asked Jul 17, 2014 by sreemathi.v

1 answer

For a dilute solution,Raoult's law states that

asked Jul 17, 2014 by sreemathi.v

1 answer

An azeotropic solution of two liquid s has a boiling point lower than either of them when it

asked Jul 17, 2014 by sreemathi.v

1 answer

The expression relating molarity (M) and molality (m) or a solution is:

asked Jul 15, 2014 by balaji.thirumalai

1 answer

The vapour pressure of pure liquid solvent A is 0.80atm.When a non volatile substance B is added to the solvent,its vapour pressure drops to 0.40atm,the mole fraction of component B in the solution is

asked Mar 25, 2014 by balaji.thirumalai

1 answer

The element “M” forms the chloride $\text{MCl}_4$. If the chloride contains 75 % chlorine by mass, calculate the molar mass of element “M”.

asked Mar 15, 2014 by balaji.thirumalai

1 answer

Depression in freezing points of $0.1\;M$ aqueous solution of $HCl,CuSO_4$ and $K_2SO_4$ are

asked Feb 17, 2014 by sreemathi.v

1 answer

At 298K temperature ,the Henry constants for $Ar,CO_2,CH_4$ and $O_2$ are 40 kbar,1.6 kbar,0.41 kbar and 34 kbar respectively.Which of the following show maximum solubility in water at a given pressure?

asked Feb 17, 2014 by sreemathi.v

1 answer

Which one of the following aqueous solutions has the lowest vapour pressure?

asked Feb 17, 2014 by sreemathi.v

1 answer

The Van't Hoff factor of $Na_2SO_3$ is

asked Feb 17, 2014 by sreemathi.v

1 answer

How much $CaCO_3$ is present in 100ml of 1000ppm $CaCO_3$ solution?

asked Feb 14, 2014 by sreemathi.v

1 answer

1000 mL of aqueous solutions of $CaCO_3$ contains 1 gm of carbonate,concentration of the solution is

asked Feb 14, 2014 by sreemathi.v

1 answer

At 293K temperature,the Henry's Law constants for $He,H_2,N_2$ and $O_2$ are 144 kbar,69 kbar,76 kbr and 34.86 kbar respectively. Which of the following show maximum solubility in water at a given pressure

asked Feb 14, 2014 by sreemathi.v

1 answer

Which of the following statements about Raoult's Law is/are correct?

asked Feb 14, 2014 by sreemathi.v

1 answer

$PtCl_4.6H_2O$ can exist as a hydrated complex. If 1 molal aqueos solution has a depression in freezing point of $3.72^{\large\circ}$,assuming 100% ionization and $K_f$ of $1.86^{\large\circ}mol^{-1}kg$ which of the following is the complex in question?

asked Feb 14, 2014 by sreemathi.v

1 answer

Relative decrease in vapour pressure of an aqueous glucose dilute solution is found to be 0.018.What is the elevation in boiling point? (Given 1 molal aq.glucose solution boils at 100.62$^{\large\circ}C$ at 1 atm.pressure)

asked Feb 14, 2014 by sreemathi.v

1 answer

12.2gm of benzonic acid (M=122) in 100gm benzene has depression in freezing point $2.6^{\large\circ}C$; $K_f = 5.2 ^{\circ} mol^{-1}kg$. If there is 100% polymerization, the number of molecules of benzonic acid in associated state is

asked Feb 14, 2014 by sreemathi.v

1 answer

The van't Hoff factor of $CH_3COOH$ is less than unity. It indicates that the acetic acid

asked Feb 14, 2014 by sreemathi.v

1 answer

The 2.56gm of sulphur in 100gm of $CS_2$ has depression in freezing point of $0.010^{\large\circ}$C. $K_f=0.1^{\large\circ}C$/molal. Hence atomicity of sulphur in $CS_2$

asked Feb 14, 2014 by sreemathi.v

1 answer

Which of the following has the maximum osmotic at temperature T?

asked Feb 14, 2014 by sreemathi.v

1 answer

Mole fraction of the component 'A' in vapour phase is X and mol fraction of component 'A' in liquid mixture is Y $(P_A^0$=vapour pressure of pure A,$P_A^0$=vapour pressure of pure B) then total vapour of the liquid mixture is

asked Feb 14, 2014 by sreemathi.v

1 answer

pH of a 0.1M monobasic acid is found to be 2.Hence its osmotic pressure at a given temp T is

asked Feb 14, 2014 by sreemathi.v

1 answer

At room temperature $25^{\large\circ}C$,the vapour pressure of pure methyl alcohol is 92 torr.Mol fraction of $CH_3OH$ in a solution in which vapour pressure of $CH_3OH$ is 24 torr at $25^{\large\circ}$ is ?

asked Feb 14, 2014 by sreemathi.v

1 answer

At room temperature $25^{\large\circ}C$,the vapour pressure of pure methyl alcohol is 90 torr.Mol fraction of $CH_3OH$ in a solution in which vapour pressure of $CH_3OH$ is 20 torr at $25^{\large\circ}$ is ?

asked Feb 14, 2014 by sreemathi.v

1 answer

Most likely the following mixtures to be an ideal solution is

asked Feb 14, 2014 by sreemathi.v

1 answer

At room temperature $25^{\large\circ}C$,the expression for total pressure of mixture of methanol and ethanol solution is given by P(in torr)$=135+120X$ where $X$ is mol fraction of methanol,Hence

asked Feb 14, 2014 by sreemathi.v

1 answer

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

asked Feb 14, 2014 by sreemathi.v

3 answers

Mixture of volatile components A and B has total vapour pressure (in torr) P=$250-115X_A$ where $X_A$ is mol fraction of 'A' in mixture.Hence $P_A^0$ and $P_B^0$ respectively are (in torr)

asked Feb 14, 2014 by sreemathi.v

1 answer

Which of the following azeotropic solutions has the boiling point less than the boiling point of the constituents

asked Feb 14, 2014 by sreemathi.v

1 answer

An azeotropic solution of two liquids has a boiling point lower than either of them when it

asked Feb 14, 2014 by sreemathi.v

2 answers

Which is true about enthalpy of solution containing benzene and toluene?

asked Feb 14, 2014 by sreemathi.v

1 answer

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