SATHEE: Chemical and Ionic Equilibrium 2 Question 30

Chemical and Ionic Equilibrium 2 Question 30

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30. A certain buffer solution contains equal concentration of $X^{-}$ and $H X$ . The $K_{b}$ for $X^{-}$ is $10^{- 10}$ . The $pH$ of the buffer is

======= ####30. A certain buffer solution contains equal concentration of $X^{-}$ and $H X$ . The $K_{b}$ for $X^{-}$ is $10^{- 10}$ . The $pH$ of the buffer is

3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed (a) 4

(b) 7

(d) 14

$(1984, 1 M)$

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Solution:

$K_{a} (H X) = \frac{K_{w}}{K_{b}} = 10^{- 4}$

$pH = p K_{a} + \log \frac{[X^{-}]}{[H X]}$

$\Rightarrow p K_{a} = 4 [∵ [X^{-}] = [H X]]$

Chemical and Ionic Equilibrium 2 Question 30

30. A certain buffer solution contains equal concentration of $X^{-}$ and $H X$ . The $K_{b}$ for $X^{-}$ is $10^{- 10}$ . The $pH$ of the buffer is

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Chemical and Ionic Equilibrium 2 Question 30

30. A certain buffer solution contains equal concentration of X− and HX. The Kb for X−is 10−10. The pH of the buffer is

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

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30. A certain buffer solution contains equal concentration of $X^{-}$ and $H X$ . The $K_{b}$ for $X^{-}$ is $10^{- 10}$ . The $pH$ of the buffer is