(D) Initially,the amount of salt $[CH_{3}COONa] = 0.1 \ mol$ and the amount of acid $[CH_{3}COOH] = 0.1 \ mol$. When an additional $0.1 \ mol$ of $CH_

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(D) Initially,the amount of salt $[CH_{3}COONa] = 0.1 \ mol$ and the amount of acid $[CH_{3}COOH] = 0.1 \ mol$. When an additional $0.1 \ mol$ of $CH_{3}COONa$ is added,the total amount of salt becomes $0.1 + 0.1 = 0.2 \ mol$. The $pH$ of an acidic buffer is given by the Henderson-Hasselbalch equation: $pH = pK_{a} + \log \frac{[salt]}{[acid]}$. Substituting the values: $pH = pK_{a} + \log \frac{0.2}{0.1}$. Therefore,$pH = pK_{a} + \log 2$.

Class 11 Chemistry 6-2.Equilibrium-II (Ionic Equilibrium)Buffer solution

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$A$ buffer solution contains $0.1 \ mol$ of sodium acetate in $1000 \ cm^{3}$ of $0.1 \ M$ acetic acid. To the above buffer solution,$0.1 \ mol$ of sodium acetate is further added and dissolved. The $pH$ of the resulting buffer is equal to

KCET 2010 All KCET

A
$pK_{a} - \log 2$
B
$pK_{a}$
C
$pK_{a} + 2$
D
$pK_{a} + \log 2$

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6-2.Equilibrium-II (Ionic Equilibrium)

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Buffer solution

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KCET 2010 Paper All KCET years →

What is the value of $[H^{+}]$ when $0.1 \ mol$ of $CH_3NH_2$ is mixed with $0.08 \ mol$ of $HCl$? Given $K_b = 5 \times 10^{-4}$.

Medium

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The buffering action of a mixture of $CH_3COOH$ and $CH_3COONa$ is maximum when the ratio of salt to acid is equal to .......?

Medium

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The $pH$ of an acidic buffer mixture is

Medium

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Calculate the amount of $(NH_4)_2SO_4$ in grams which must be added to $500 \ mL$ of $0.200 \ M \ NH_3$ to yield a solution with $pH = 9.35$ ($K_b$ for $NH_3 = 1.78 \times 10^{-5}$).

Medium

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$A$ buffer solution is formed by a weak acid and its salt with a strong base,or a weak base and its salt with a strong acid. In which of the following pairs is this characteristic found?

MediumAIIMS 1982

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$A$ buffer solution contains $0.1 \ mol$ of sodium acetate in $1000 \ cm^{3}$ of $0.1 \ M$ acetic acid. To the above buffer solution,$0.1 \ mol$ of sodium acetate is further added and dissolved. The $pH$ of the resulting buffer is equal to

Similar Questions

What is the value of $[H^{+}]$ when $0.1 \ mol$ of $CH_3NH_2$ is mixed with $0.08 \ mol$ of $HCl$? Given $K_b = 5 \times 10^{-4}$.

The buffering action of a mixture of $CH_3COOH$ and $CH_3COONa$ is maximum when the ratio of salt to acid is equal to .......?

The $pH$ of an acidic buffer mixture is

Calculate the amount of $(NH_4)_2SO_4$ in grams which must be added to $500 \ mL$ of $0.200 \ M \ NH_3$ to yield a solution with $pH = 9.35$ ($K_b$ for $NH_3 = 1.78 \times 10^{-5}$).

$A$ buffer solution is formed by a weak acid and its salt with a strong base,or a weak base and its salt with a strong acid. In which of the following pairs is this characteristic found?

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