JEE Advanced 2026 Chemistry question
At , the molar conductivities of the aqueous solutions of three salts at two different concentrations are given below:
| Salt | Concentration (M) | Molar conductivity (S cm mol) | |---|---|---| | NaNO | 0.01 | 111 | | NaNO | 0.04 | 101 | | NaCl | 0.01 | 117 | | NaCl | 0.04 | 107 | | AgNO | 0.01 | 125 | | AgNO | 0.04 | 116 |
The conductivity of a saturated aqueous solution of AgCl is at . If the solubility of AgCl in water at is , then 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.)
Solution
**Step 1 — limiting molar conductivities by Debye–Hückel–Onsager extrapolation.** For a strong electrolyte , so plotting against and extrapolating to gives . Here and . * NaNO:
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