At 300 K, the molar conductivities of the aqueous solutions of three salts at two different concentrations are given below. The conductivity of a saturated aqueous solution of AgCl is 1.40 × 10⁻⁶ S cm⁻¹ at 300 K. If the solubility of AgCl in water at 300 K is X mol L⁻¹, then log₁₀(X⁻¹) is (Assume that AgCl dissolved in water ionizes completely and that the molar conductivity of saturated AgCl solution is equal to its limiting molar conductivity.)