QuestionElectrochemistry / Kohlrausch's law, Ostwald dilution
The conductivity of 0·001 M dichloroacetic acid solution is 3·88 × 10⁻⁵ S cm⁻¹. The molar conductivities at infinite dilution for HCl, NaCl and CHCl₂COONa (sodium dichloroacetate) are 426 S cm² mol⁻¹, 126 S cm² mol⁻¹ and 88 S cm² mol⁻¹, respectively. The degree of dissociation and dissociation constant of dichloroacetic acid will be respectively
- (a) 0·2 and 1·1 × 10⁻⁶
- (b) 0·1 and 1·1 × 10⁻⁶
- (c) 0·2 and 1·1 × 10⁻⁴
- (d) 0·1 and 1·1 × 10⁻⁵
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