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The p K_{a} of a weak acid, {H} A is 4.80. The p K_{b} of a we

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Solving time: 3 mins

The $p K_{a}$ of a weak acid, $H A$ is $4.80$ . The $p K_{b}$ of a weak base, $B OH$ , is $4.78$ . The $pH$ of an aqueous solution of the corresponding salt, $B A$ , will be

9.58

4.79

7.01

9.22

Views: 5,404 students

Updated on: Jan 4, 2023

Book:

Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2008

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Isabella Discussed

The

p K_{a}

of a weak acid,

H A

4.80

. The

p K_{b}

of a weak base,

B OH

, is

4.78

. The

pH

of an aqueous solution of the corresponding salt,

B A

, will be

7 mins ago

Discuss this question LIVE

7 mins ago

Text solutionVerified

Exp. (c) For salt of weak acid and weak base

pH = - \frac{1}{2} [lo g K_{a} + lo g K_{w} - lo g K_{b}]

= \frac{1}{2} pK_{a} + \frac{1}{2} p K_{w} - \frac{1}{2} p K_{b}

= \frac{1}{2} \times 4.80 + 7 - \frac{1}{2} \times 4.78 = 7.01

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Question Text	The $p K_{a}$ of a weak acid, $H A$ is $4.80$ . The $p K_{b}$ of a weak base, $B OH$ , is $4.78$ . The $pH$ of an aqueous solution of the corresponding salt, $B A$ , will be
Updated On	Jan 4, 2023
Topic	Equilibrium
Subject	Chemistry
Class	Class 11
Answer Type	Text solution:1 Video solution: 7
Upvotes	855
Avg. Video Duration	12 min

The $p K_{a}$ of a weak acid, $H A$ is $4.80$ . The $p K_{b}$ of a weak base, $B OH$ , is $4.78$ . The $pH$ of an aqueous solution of the corresponding salt, $B A$ , will be

Text solutionVerified

Filo tutor solutions (7)

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The pKa​ of a weak acid, HA is 4.80. The pKb​ of a weak base, BOH, is 4.78. The pH of an aqueous solution of the corresponding salt, BA, will be

Text solutionVerified

Filo tutor solutions (7)

Questions from JEE Mains 2008 - PYQs

Practice questions from Arihant Chemistry JEE Main Chapterwise Solutions (2019-2002) (Arihant)

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The $p K_{a}$ of a weak acid, $H A$ is $4.80$ . The $p K_{b}$ of a weak base, $B OH$ , is $4.78$ . The $pH$ of an aqueous solution of the corresponding salt, $B A$ , will be