Which weak acid would be best to use when preparing a buffer solution with a pH...

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Which weak acid would be best to use when preparing a buffer solution with a pH of 8.40? an acid with pK, - 3.20 O an acid wi

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Answer 1

Answer #1

Buffer is basically made up of a weak acud and its conjugate base.

And we have a direct relationship between the pKa value of weak acid and the pH of the buffer that is the pKa value of weak acid should be almost equal to the pH of the buffer so

The answer will be option (e) pKa = 8.38 because if is almost equal to 8.40.

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Answer 2

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