(D) In the titration of a weak acid (e.g.,$CH_3COOH$) and a strong base (e.g.,$NaOH$),the equivalence point lies in the basic range (pH > $7$).Phenolp

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(D) In the titration of a weak acid (e.g.,$CH_3COOH$) and a strong base (e.g.,$NaOH$),the equivalence point lies in the basic range (pH > $7$).Phenolphthalein is a suitable indicator for this titration because its pH range $(8.2 - 10.0)$ coincides with the steep rise in pH at the equivalence point of a weak acid-strong base titration.

Class 11 Chemistry 6-2.Equilibrium-II (Ionic Equilibrium)Acid and base indicators

Easy

Which indicator is useful for the titration of a weak acid and a strong base?

A
Potassium dichromate
B
Methyl orange
C
Litmus
D
Phenolphthalein

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Chapter

6-2.Equilibrium-II (Ionic Equilibrium)

Subtopic

Acid and base indicators

At what $pH$ will an indicator with $K_b = 1 \times 10^{-11}$ show a color change in a $1 \times 10^{-4} \ M$ solution?

Medium

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The pink color of phenolphthalein in an alkaline medium is due to:

Easy

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If a very small amount of $HPh$ (phenolphthalein) is added to a $0.1 \ M$ aqueous solution of $CH_3COONa$,the fraction of the indicator that exists in the colourless form is:
$[K_b(CH_3COO^{-}) = 10^{-9}, pK_a(HPh) = 9.6, \log 2 = 0.3]$

Medium

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The indicator used in the titration of $Na_2CO_3$ with $HCl$ is..................

Difficult

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Phenolphthalein is not a good indicator for titrating:

Medium

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Which indicator is useful for the titration of a weak acid and a strong base?

Similar Questions

At what $pH$ will an indicator with $K_b = 1 \times 10^{-11}$ show a color change in a $1 \times 10^{-4} \ M$ solution?

The pink color of phenolphthalein in an alkaline medium is due to:

If a very small amount of $HPh$ (phenolphthalein) is added to a $0.1 \ M$ aqueous solution of $CH_3COONa$,the fraction of the indicator that exists in the colourless form is: $[K_b(CH_3COO^{-}) = 10^{-9}, pK_a(HPh) = 9.6, \log 2 = 0.3]$

The indicator used in the titration of $Na_2CO_3$ with $HCl$ is..................

Phenolphthalein is not a good indicator for titrating:

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If a very small amount of $HPh$ (phenolphthalein) is added to a $0.1 \ M$ aqueous solution of $CH_3COONa$,the fraction of the indicator that exists in the colourless form is:
$[K_b(CH_3COO^{-}) = 10^{-9}, pK_a(HPh) = 9.6, \log 2 = 0.3]$