If the pH of a buffer solution is equal to the pKa of the acid in the
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Question:
If the pH of a buffer solution is equal to the pKa of the acid in the buffer, what does this tell you about the relative concentrations of the acid and conjugate base forms of the buffer components?
1. The acid and base concentrations must be equal to the Ka.
2. The acid concentration must be zero.
3. The base concentration must be 2.3 times as large as the acid concentration.
4. The acid and base concentrations must be equal.
5. The base concentration must be zero.
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