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Standard XII

Chemistry

Law of Mass Action

50mL of 0.2...

Question

$50$ mL of $0.2$ M ammonia solution is treated with $25$ mL of $0.2$ M $H C l$ . If $p K_{b}$ of ammonia solution is $4.75$ , the $p H$ of the mixture will be:

8.25

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4.75

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9.25

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3.75

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Solution

The correct option is C $9.25$

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Similar questions

40 m l

0.1 M

ammonia solution is mixed with

20 m l

0.1 M H C l

. What is the pH of the mixture?

[Given:

p K_{b}

of ammonia solution is

4.74

]

pH of two solutions :
I. 50 ml of 0.2 M~HCl + 50 ml of 0.2 M HA $(K_{a} = 1.0 \times 10^{- 5})$ and
II. 50 ml of 0.2 M HCl + 50 ml of 0.2 M NaA will be respectively

Q. A

25 m L

solution of

0.2 M N H_{4} O H

is titrated against

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. Find the

p H

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p K_{b} (N H_{4} O H) = 4.74

Q. 20

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solution is added to

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0.2 M

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[P k_{b} o f N H_{4} O H = 4.11]

Q. Solution of 0.1 N

N H_{4} O H

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p K_{b}

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50mL of 0.2M ammonia solution is treated with 25 mL of 0.2 M HCl. If pKb of ammonia solution is 4.75, the pH of the mixture will be:

The correct option is C 9.25

$50$ mL of $0.2$ M ammonia solution is treated with $25$ mL of $0.2$ M $H C l$ . If $p K_{b}$ of ammonia solution is $4.75$ , the $p H$ of the mixture will be:

The correct option is C $9.25$