Multiple Choice
Which of the following weak acids would make the best buffer at pH = 5.0?
A) acetic acid (Ka = 1.74 × 10-5,pKa = 4.76)
B) bicarbonate (Ka = 6.3 × 10-11,pKa = 10.24)
C) tris-hydroxymethyl aminomethane (Ka = 8.32 × 10-9,pKa = 8.07)
D) lactic acid (Ka = 1.38 × 10-4,pKa = 3.86)
Correct Answer:
Verified
Correct Answer:
Verified
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