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27.WHAT IS TH...

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27.WHAT IS THE CONDITION OF MAXIMUM BUFFER ACTION OF ACIDIC BUFFER SOLUTION ?

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Q. What is a buffer solution? How is it prepared? Explain the buffer action of a basic buffer with a suitable example.

Q. pH of a buffer solution decreases by

0.02

0.12 g

of acetic acid is added to

250 m L

of a buffer solution of a acetic acid and potassium acetate at

27^{o} C

. The buffer capacity of the solution is:

Q. Choose the correct combination among thefollowing
A) A mixture of weak acid and its salt of strong base acts as acidic buffer.
B) As number of moles of acid or base required to change the

p^{H}

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C) Buffer action is maximum at

p^{H} = P^{K a}

in case of acidic buffer.

Q. An acidic buffer has the maximum buffer capacity when:

2

H C I

I L

of an acidic buffer, its

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2.9

. The buffer capacity of the buffer solution is

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