Arre, Kohlrausch's law is for strong electrolytes, beta. For weak acid like acetic acid, you first find limiting molar conductivity from known values of ions—using lambda naught of H⁺ and CH₃COO⁻. Then use that with your measured conductivity at low concentration in the Ostwald dilution formula.
In the lab course I'm taking, they make us do this very calculation with the old conductivity bridge. My hands, used to lifting weights, fumble with the tiny knobs, but the principle is solid—like building base strength before the heavy lift.
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