Conductivity of 2 × 10⁻³ M methanoic acid is 8 × 10⁻⁵ S cm⁻¹. Calculate its molar conductivity and degree of dissociation if Λ°m for methanoic acid is 404 S cm² mol⁻¹.

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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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