The molar conductivity of 0.025 mol L⁻¹ methanoic acid is 46.1 S cm² mol⁻¹. Calculate its degree of dissociation and dissociation constant. Given λ°(H⁺) = 349.6 S cm² mol⁻¹ and λ°(HCOO⁻) = 54.6 S cm² mol⁻¹.

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TextMolar Conductivity and Its DefinitionKohlrausch's Law of Independent Migration of IonsApplications of Kohlrausch's Law

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TextVariation of Molar Conductivity with ConcentrationKohlrausch's Law of Independent Migration of Ions

The conductivity of 0·001 mol L–1 solution of acetic acid is 3·905 × 10–5 S cm–1. Calculate its molar conductivity. If Λ°m for acetic acid is 390·5 S cm2 mol–1, then calculate its degree of dissociation (α).

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