At infinite dilution, each ion contributes independently to the total molar conductivity, regardless of the counter-ion present. Lambda_m_infinity = sum of cation and anion limiting conductivities: Lambda_m_infinity = nu+ * lambda_infinity(+) + nu- * lambda_infinity(-). Applications: (1) Finding Lambda_m_infinity for weak electrolytes: Lambda_m_infinity(CH3COOH) = Lambda_m_infinity(CH3COONa) + Lambda_m_infinity(HCl) - Lambda_m_infinity(NaCl). (2) Calculating degree of dissociation: alpha = Lambda_m/Lambda_m_infinity. (3) Determining Ka: combine alpha with Ostwald's dilution law. This is the most common Kohlrausch calculation in JEE.
Part of JPC-03 — Electrochemistry: Nernst, Conductance & Cells
Kohlrausch's Law of Independent Migration
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