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Molar conductivity, Kohlrausch's law and the solubility of saturated AgCl

JEE Advanced 2026 Paper 2 · Question 1 Chemistry Conductance of electrolytic solutions Moderate

Extrapolate molar conductivities of NaNO3, NaCl and AgNO3 to infinite dilution, combine them by Kohlrausch's law to get the limiting molar conductivity of AgCl, and convert the measured conductivity of a saturated solution into its solubility.

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Sub-topics covered

Molar conductivity and its concentration dependence
Limiting molar conductivity by extrapolation
Kohlrausch's law of independent migration of ions
Solubility of a sparingly soluble salt from conductance measurements

What it teaches

Conductivity vs molar conductivity
Debye-Hückel-Onsager square-root law
Strong vs sparingly soluble electrolytes
Solubility product from solubility

Simulation ID

ADV-2026-P2-CHE-Q01 · revision 1

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