Silver ion forms a complex with thiosulphate ion with their formula Ag S 2 O 3 2 3 - . K f for this complex is 2 x 10 13 . How many grams of AgBr (K sp = 5 x 10 - 13 ) will dissolve in 125 mL of a 1.20 M Na 2 S 2 O 3 solution.

AgBr s + 2 S 2 O 3 aq 2 - ⇌ Ag S 2 O 3 2 aq 3 - + Br aq - 1 ; K = K sp K f = 1 0 1 . 2 - 2 S S S S 1 . 2 - 2 S = 3.16 ∵ S 2 1.2 - 2 S 2 = k = 1 0 in 125 mL moles of AgBr dissolved = 0.52 x 0.125 = 0.065 Mass of AgBr dissolved = 0.065 x 188 = 12.22 g

Precipitation of AgCl K sp = 1 .6 × 10 - 10 occurs when

10 mL 10 - 4 M CaCl 2 and 20 mL of 10 - 5 M AgNO 3 are mixed

10 mL 2 × 10 - 5 M NaCl and 40 mL of 10 - 5 M AgNO 3 are mixed

10 mL 10 - 10 M KCl and 20 mL of 10 - 10 M AgNO 3 are mixed

10 mL 10 - 5 NaCl and 10 mL of 10 - 5 M AgNO 3 are mixed

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One of the field of applications of solubility curves is in .

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Important Questions on Solution

EASY

Physical Science>Chemistry>Solution>Solubility

Maximum amount of a solid solute that can be dissolved in a specified amount of a given liquid solvent does not depend upon _____

(i) Temperature
(ii) Nature of Solute
(iii) Pressure
(iv) Nature of Solvent

EASY

Physical Science>Chemistry>Solution>Solubility

K_{H}

values for

{Ar}_{(g)}, {CO}_{2 (g)}, {HCHO}_{(g)}

and

{CH}_{A (g)}

are

40.39, 1.67, 1.83 \times 10^{- 5}

and

0.413

respectively. The most soluble gas is (

K_{H}

is Henry's Law constant)

MEDIUM

Physical Science>Chemistry>Solution>Solubility

AgCl

is soluble in

{NH}_{4} OH

. The solubility is due to the formation of

HARD

Physical Science>Chemistry>Solution>Solubility

When

{NaNO}_{3}

is dissolved in water, the temperature of the solution decreases. Which of the following statements describes the effect of increase in temperature on the solubility of

{NaNO}_{3}

in water?

HARD

Physical Science>Chemistry>Solution>Solubility

Solubility of which among the following solids in water changes slightly with temperature?

MEDIUM

Physical Science>Chemistry>Solution>Solubility

Give the definition of solubility of a substance.

HARD

Physical Science>Chemistry>Solution>Solubility

Explain the effect of temperature of solubility of solid in liquid. Write an equation of Van't Hoff factor for abnormal molecular weight. How it is affected by association and dissociation.

MEDIUM

Physical Science>Chemistry>Solution>Solubility

A solid dissolves in water exothermically. What happens if its saturated solution at

20 ° C

is cooled to

0 ° C

HARD

Physical Science>Chemistry>Solution>Solubility

Dissolution of solids in water can be exothermic or endothermic process but gases dissolve in water always with the evolution of heat. Dissolution of a substance in water can be either because ion dipole interactions or by hydrogen bond formation. Pressure plays a significant role on the solubility to gases in water. Solubility of a gas in terms of mol fraction

(X_{B})

is related to pressure

(P)

according to the mathematical relation

P = K_{H} X_{B}

On the basic of above paragraph answer the following questions.
When a pinch of salt

(NaCl)

is added to a freshly opened bottle of cocacola or limca, a lot of effervescence occurs with evolution of a colourless gas

MEDIUM

Physical Science>Chemistry>Solution>Solubility

At equilibrium, the rate of dissolution of a solid solute in a volatile liquid solvent is _____.

MEDIUM

Physical Science>Chemistry>Solution>Solubility

The molar solubility (in $Mol L^{- 1}$ ) of a sparingly soluble salt ${MX}_{4}$ is ‘s’. The corresponding solubility product is $K_{s p} .$ ‘s’ is given in terms of $K_{s p}$ by the relation :

EASY

Physical Science>Chemistry>Solution>Solubility

The solubility of lower alcohols in water is due to -

HARD

Physical Science>Chemistry>Solution>Solubility

The solubility of metal sulphides in saturated solution of H2S {H2S = 0.1 M} can be represented by

M S + 2 H^{+} ⇌ M^{2} + H_{2} S; K_{e q} = \frac{[M^{2 +}] [H_{2} S]}{{[H^{+}]}^{2}}

The value of Keq is given for few metal suphide. If conc. of each metal ion in solution is 0.01 M, which
metal sulphides are selectively ppt at total [H⁺] = 1 M in saturated H₂S solution.
Metal sulphides MnS Zns CoS Pbs

K_{e q} = \frac{[M^{2 +}] [H_{2} S]}{{[H^{+}]}^{2}} 3 \times 10^{10} 3 \times 10^{- 2} 33 \times 10^{- 7}

MEDIUM

Physical Science>Chemistry>Solution>Solubility

Some of the following gases are soluble in water due to formation of their ions:

$I : {CO}_{2}; II : {NH}_{3}; III : HCl; IV : {CH}_{4}; V : H_{2}$

Water insoluble gases can be:

HARD

Physical Science>Chemistry>Solution>Solubility

Silver ion forms a complex with thiosulphate ion with their formula

Ag {(S_{2} O_{3})}_{2}^{3 -}

. K_f for this complex is 2 x 10¹³ . How many grams of AgBr (K_sp = 5 x 10^{- 13} ) will dissolve in 125 mL of a 1.20 M Na₂S₂O₃ solution.

EASY

Physical Science>Chemistry>Solution>Solubility

The dissolving process is exothermic when

MEDIUM

Physical Science>Chemistry>Solution>Solubility

Precipitation of

AgCl (K_{sp} = 1 .6 \times 10^{- 10})

occurs when

EASY

Physical Science>Chemistry>Solution>Solubility

Explain the solubility rule “like dissolves like” in terms of intermolecular forces that exist in solutions.

EASY

Physical Science>Chemistry>Solution>Solubility

On dissolving sugar in water at room temperature, the solution feels cool to touch. For dissolution of sugar to be rapid, what should be taken?
Hot water or cold water

EASY

Physical Science>Chemistry>Solution>Solubility

On dissolving sugar in water at room temperature solution feels cool to touch. Under which of the following cases dissolution of sugar will be most rapid?

One of the field of applications of solubility curves is in .

Important Questions on Solution

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