When Does a Weak Acid Buffer Best

question 61

Multiple Choice

When does a weak acid buffer best?

• A) From one pH unit below its pK_a to its pK_a.
• B) From its pK_a to one pH unit above its pK_a.
• C) Within one pH unit of its pK_a, both above and below.
• D) Weak acids do not make good buffers at all.

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