Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 56

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If ${pK}_{b}$ of a weak monoacidic base $>$ ${pK}_{a}$ of a weak monobasic acid, then the solution of the salt of a weak acid and a weak base having equal concentrations of cation and anion will be:

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Important Questions on Equilibrium

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 57

A

certain weak acid has

Ka = 1.0 \times 10^{- 4}

. Calculate the equilibrium constant for its reaction with a strong base -

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 58

Which of the following mixtures form an acid buffer?

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 59

Which may be added to one litre of water to act as a buffer?

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 60

The

pH

of a basic buffer solution is:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 61

The

pH

of the buffer of

{NH}_{4} OH + {NH}_{4} Cl

type at

25 ° C

is given by:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 62

Select the correct combination:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 64

10^{- 2}

mole of

NaOH

was added to

10

litre of water at

25 ° C

. The

pH

will change by:

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Alpha Question Bank for Medical: Chemistry>Chapter 5 - Equilibrium>Exercise 1>Q 65

100 mL

of

1 M HCl

s olution is mixed with

50 ml

of

2 M HCl

solution. Hence,

[H_{3} O^{+}]

in the resulting solution is: