Question

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% dissociated. The value of dissociation constant, $K_a$, for this acid will be:
(a) 2.8 × 10⁻⁴
(b) 1.4 × 10⁻⁵
(c) 1.4 × 10⁻⁴
(d) 3.7 × 10⁻⁴

Answer 1

$<b>$
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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% dissociated. The value of dissociation constant, $K_a$, for this acid will be:
(a) 2.8 × 10⁻⁴
(b) 1.4 × 10⁻⁵
(c) 1.4 × 10⁻⁴
(d) 3.7 × 10⁻⁴

→ [B]


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Answer 2

$\huge\red{Answer}$

(b) 1.4 × 10⁻⁵

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