Which of the following is the most effective buffer for pH of 7.4?
Correct Answer: Phosphate buffer with pKA of 6.9
Description: Blood pH - 7.4 Buffer is most effective when pH = pKA +- 1 Therefore the most effective buffer for pH- 7.4 will be the one whose pKA +- 1 will cover this pH. Out of given options pKA +- 1 of phosphate buffer (5.9 to 7.9) covers pH 7.4. So most effective buffer for blood will be Phosphate buffer with pKA of 6.9.
Category:
Biochemistry
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