The Henderson–Hasselbalch equation demonstrates the relationship between the pH of a buffer and the ratio of conjugate base to weak acid in that buffer. When [A-]:
A. is greater than [HA], the pH is lower than the pKa.
B. is less than [HA], the pH is higher than the pKa.
C. is equal to [HA], the pH is equal to the pKa.
D. is greater than [HA], the pH is equal to the pKa.
E. is less than [HA], the pH is equal to the pKa.
C
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