Gamma Question Bank for Medical Chemistry>Chapter 7 - Equilibrium>Assignment>Q 10

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The ${pK}_{a}$ and ${pK}_{b}$ value of acetic acid and ammonium hydroxide are $4.78$ and $4.7$ respectively, then the $pH$ of ammonium acetate solution is

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Important Questions on Equilibrium

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Gamma Question Bank for Medical Chemistry>Chapter 7 - Equilibrium>Assignment>Q 11

The dissociation constant of a weak monoacidic base is

10^{- 5} .

The

pH

of its

0.1 M

solution will be approximately equal to

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Gamma Question Bank for Medical Chemistry>Chapter 7 - Equilibrium>Assignment>Q 12

$HF + H_{2} O \overset{k_{1}}{⟶} H_{3} O^{+} + F^{-}$
$F^{-} + H_{2} O \overset{K_{2}}{⟶} HF + {OH}^{-}$

For the above two reactions which of the given relation is correct?

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Gamma Question Bank for Medical Chemistry>Chapter 7 - Equilibrium>Assignment>Q 13

The

pH

of a solution formed by mixing

40 ml

of

0.1 M HCl

with

10 ml

of

0.45 M

of

NaOH

is :

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Gamma Question Bank for Medical Chemistry>Chapter 7 - Equilibrium>Assignment>Q 14

What is the

pH

of

10^{- 6} MHCl

at

25 ° C ?

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Gamma Question Bank for Medical Chemistry>Chapter 7 - Equilibrium>Assignment>Q 15

The solubility of sparingly soluble salt

{Bi}_{2} S_{5}

is

S mol {dm}^{3} .

Its solubility product is

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Gamma Question Bank for Medical Chemistry>Chapter 7 - Equilibrium>Assignment>Q 1

The equilibrium constant

K_{c}

for the following reaction will be

K_{2} {CO}_{3} (aq) + {BaSO}_{4} (s) ⇌ {BaCO}_{3} (s) + K_{2} {SO}_{4} (aq)

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Gamma Question Bank for Medical Chemistry>Chapter 7 - Equilibrium>Assignment>Q 2

At the temperature

T

, a compound

{AB}_{2} (g)

dissociates, according to the reaction

2 {AB}_{2} (g) ⇌ 2 AB (g) + B_{2} (g)

with a degree of dissociation

x

, which is small compared with unity. The expression for

K_{p}

in terms of

x

and the total pressure,

P

is

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Gamma Question Bank for Medical Chemistry>Chapter 7 - Equilibrium>Assignment>Q 3

Ammonium carbamate dissociates as

{NH}_{2} {COONH}_{4 (s)} ⇋ 2 {NH}_{3 (g)} + {CO}_{2 (g)}

In a closed vessel containing ammonium carbamate in equilibrium, ammonia is added such that the partial pressure of

{NH}_{3}

now equals to the original total pressure. The ratio of total pressure now to the original pressure is