Consider separate solutions of 0 . 500 M C 2 H 5 OH aq , 0 . 100 M Mg 3 PO 4 2 aq , 0 . 250 M KBr aq and 0 . 125 M Na 3 PO 4 aq at 25 ° C . Which statement is true about these solutions, assuming all salts to be strong electrolytes?

They all have the same osmotic pressure.

0 . 100 M Mg 3 ( PO 4 ) 2 aq has the highest osmotic pressure.

0 . 125 M Na 3 PO 4 aq has the highest osmotic pressure.

0 . 500 M C 2 H 5 OH aq has the highest osmotic pressure.

EASY

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Acetic acid exists in benzene solution in the dimeric form. In an actual experiment, the van't Hoff factor was found to the 0.52. Then the degree of association of acetic acid is

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Important Questions on Solutions

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Which of the following compounds have the same value of vant Hoff's factor

(i)

as that of

{Al}_{2} {({SO}_{4})}_{3}

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Consider the following equilibrium for benzoic acid in benzene

$2 C_{6} H_{5} COOH ⇌ {(C_{6} H_{5} COOH)}_{2}$

If $x$ represents the degree of association of the solute then relationship between total number of moles of particles at equilibrium and van't Hoff factor $(i)$ is

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

A one molal solution of sodium chloride in water has the same boiling point as

MEDIUM

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Which one of the following electrolytes has the same value of van's Hoff's factor (i) as that of

A l_{2} {(S O_{4})}_{3}

(if all are

100 %

ionized)?

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

An aqueous solution of a salt

M X_{2}

at certain temperature has a Van't Hoff factor of

2

. What is the degree of dissociation for this solution of the salt?

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Vant Hoff factors of equimolal solutions of sodium chloride, barium chloride and glucose in water are

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Which of the following aqueous solutions should have the highest boiling point?

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Which of the following aqueous solution has the highest boiling point having concentration $0.050 m$ ?

MEDIUM

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Determination of the molar mass of acetic acid in benzene using freezing point depression is affected by:

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Relationship between van’t Hoff’s factor (i) and degree of dissociation

(α)

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

An aqueous solution of which of the following compounds causes more freezing point depression?

HARD

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Consider the galvanic cell.

P t_{(S)} | H_{2} (1 bar) | H^{+}_{(a q)} 1 M | | H C l_{(a q)} 1 M | C l_{2} (1 bar) | P t_{(s)}

. After running the cell for sometime, the concentration of the electrolyte is automatically raised to

3 M H C l

. Molar conductivity of the

3 M H C l

is about

240 S c m^{2} m o l^{- 1}

and limiting molar conductivity of

H C l

is about

420 S c m^{2} m o l^{- 1}

. If

K_{b}

of water is

0.52 K k g m o l^{- 1}

, calculate the boiling point of the electrolyte at the end of the experiment

MEDIUM

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Which one of the following

0.06 M

aqueous solutions has lowest freezing point ?

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

The van't Hoff factor

(i)

for a dilute aqueous solution of the strong electrolyte barium hydroxide is

MEDIUM

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

In a solvent

50 %

of an acid HA dimerizes and the rest dissociates. The van't Hoff factor of the acid is _____

\times 10^{- 2}

(Round off to the nearest integer)

MEDIUM

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Which of the following aqueous solution has highest boiling point?

MEDIUM

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

We have three aqueous solutions of

NaCl

labelled A, B and C with concentrations

0.1 M

0.01 M

and

0.001 M

respectively. The value of van't Hoff factor for these solution will be in the order _____.

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

The van’t Hoff factor

i

for a compound which undergoes dissociation in one solvent and association in another solvent is respectively

HARD

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

Consider separate solutions of

0.500 M C_{2} H_{5} OH (aq), 0.100 M {Mg}_{3} {({PO}_{4})}_{2} (aq), 0.250 M KBr (aq)

and

0.125 M {Na}_{3} {PO}_{4} (aq)

25 ° C

. Which statement is true about these solutions, assuming all salts to be strong electrolytes?

EASY

Chemistry>Physical Chemistry>Solutions>Van't Hoff's Factor

For which among the following equimolar aqueous solutions Van't Hoff factor has the lowest value?

Acetic acid exists in benzene solution in the dimeric form. In an actual experiment, the van't Hoff factor was found to the 0.52. Then the degree of association of acetic acid is

Important Questions on Solutions

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