A buffer that is most effective at a pH of about 4.5 is:
Correct Answer: Acetate buffer
Description: A buffer system becomes more effective when the pH of the system equals its pKa. Acetate buffer has a pKa value of 4.76 which nearly equals that of the system. So the buffer that is most effective at a pH of 4.5 is acetate buffer.
Category:
Biochemistry
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