Calculate the pKa of lactic acid, given that when the concentration of lactic acid is 0.01 M and the concentration of lactate is 0.002 M, the pH is 2.9

A. 3.9
B. 3.6
C. 3.2
D. 2.5
E. 2.2


B 2.9 = pKa + log 0.002/0.01

Biology & Microbiology

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