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3 years ago

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A buffer contains the weak acid HA and its conjugate base A-. the weak acid has a p Ka of 4.82 and the buffer has a pH of 4.25.

Which statement is true of the relative concentration of the weak acid and its conjugate base in the buffer?
a) [HA} > [A-]
b) [Ha} < [A-]
c) [HA]=[A-]

1 answer:

klasskru [66]3 years ago

3 0

<span>I think the correct answer is A. A buffer is a substance that resists small change in the acidity of a solution when an acid or base is added to the solution. Usually, a buffer involves a weak acid or a weak alkali and one of its salt.</span>

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