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Boundless Chemistry
Acid-Base Equilibria
Chemistry Textbooks Boundless Chemistry Acid-Base Equilibria
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Chemistry

Section 3

Buffer Effectiveness

Book Version 33
By Boundless
Boundless Chemistry
Chemistry
by Boundless
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3 concepts
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Relative Amounts of Acid and Base

The pH of a buffer depends on the ratio [base]/[acid] rather than on the particular concentration of a specific solution.

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Absolute Concentrations of the Acid and Conjugate Base

For an effective buffer, there must be enough acid/conjugate base to consume all newly added ions so that the pH is maintained.

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Buffer Range and Capacity

A buffer's capacity is the pH range where it works as an effective buffer, preventing large changes in pH upon addition of an acid or base.

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