Accumulation of lactic acid (HC3H5O3), a monobasic acid in tissues leads to pain and a feeling of fatigue. In a 0.10 M aqueous solution, lactic acid is 3.7% dissociates. The value of dissociation constant, Ka, for this acid will be:
2.8 × 10–4
1.4 × 10–5
1.4 × 10–4
3.7 × 10–4