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An aqueous solution of HCl has 2% mass of HCl and a density of $1.02gcm^{-3}$ .The numerical values of molarity and molality,respectively, are

asked Jul 22, 2014 by sreemathi.v

1 answer

The volume of 96% $H_2SO_4$ (density $1.83gmL^{-1}$) required to prepare 2.0L of 3.0M $H_2SO_4$ solution is

asked Jul 22, 2014 by sreemathi.v

1 answer

What mass of ethanol be added to 1.0Kg water to have the mole fraction of ethanol equal to 0.20?

asked Jul 22, 2014 by sreemathi.v

1 answer

A molal solution is one that contains one mole of a solute in

asked Jul 22, 2014 by sreemathi.v

1 answer

The density of a 10.0% by mass KCl solution in water is $1.06gcm^{-3}$,its molarity is

asked Jul 22, 2014 by sreemathi.v

1 answer

The molecular weight of benzoic acid in benzene as determined by depression in freezing point method corresponds to

asked Jul 18, 2014 by sreemathi.v

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

Which of the following colligative properties can provide molar mass of proteins (or polymers or colloids) with greater precision?

asked Jul 18, 2014 by sreemathi.v

1 answer

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

asked Jul 18, 2014 by sreemathi.v

1 answer

Raoult's law is obeyed by each constituent of a binary liquid solution when

asked Jul 18, 2014 by sreemathi.v

1 answer

A binary liquid solution of chloroform and acetone is prepared.Which of the following statements correctly represents the behaviour of this liquid solution?

asked Jul 17, 2014 by sreemathi.v

1 answer

A binary liquid solution of n-heptane and ethyl alcohol is prepared.Which of the following statements correctly represents the behaviour of this liquid solution?

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 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

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