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Salt of Weak Acid and Strong Base

the ph of 0.2...

Question

the ph of 0.2M aqueous solution of NH4cl will be (pkb of NH3=4.74,LOg 2=0.3

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litre solution containing

0.1 m o l e

N H_{3}

N H_{4} C l, 0.05 m o l

N a O H

p H

(p K_{b}

N H_{3} = 4.74)

.

p K_{b}

N H_{3}

4.74

p K_{b}

A^{-}, B^{-}

C^{-}

4, 5

6

respectively. Aqueous solution of

0.01 M

p H

in the increasing order.

25^{o} C

p K_{b}

K_{b}

being the dissociation constant at a base) for

{N H}_{3}

in aqueous solution is

4.7

. What is the pH of

0.1 M

aqueous solution of

{N H}_{4} C l

0.01 M

{N H}_{3}

(approximately)?

p K_{b}

N H_{3}

p H

when 100 mL of 0.01 M

N H_{3}

solution is 50% neutralised by 0.01 M HCl is,

Q. What will be the pH of aqueous solution of NH4Cl ??

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Salt of Weak Acid and Strong Base

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