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

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answer is 2.

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Detailed Solution

Degree of dissociation, α=3.7100=0.037 According to Ostwald's formula, Ka=α2C =(0.037)2×0.10 =1.369×10-4≈1.4×10-4

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