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Industrial Preparation of Ammonia

81 Ammonium a...

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81 Ammonium acetate which is .01 M is hydrolysed to .001M concentration.Calculate the change in pH in .001M solution if initially pH=pKa

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p k_{a}

of acetic acid and

p K_{b}

of ammonium hydroxide are 4.76 and 4.75 respectively. Calculate the pH of ammonium acetate solution.

Q. The pH of ammonium acetate can be calculated by using the expression:

Q. In order to prepare a buffer solution of pH 5.74, sodium acetate is added to acetic acid. If the concentration of acetic acid in the buffer is 1.0 M, the concentration of sodium acetate in the buffer is ______M. (Round off to the Nearest Integer).
[Given:

p K_{a}

(acetic acid) = 4.74]

p K_{a}

of acetic acid and

p K_{b}

N H_{4} O H

4.76

4.75

. Calculate the

p H

of ammonium acetate ions.

p H

of a solution which is

0.1 M

sodium acetate and

0.01 M

(p K_{a} = 4.74)

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