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Conductivity of a 0.01 M NaCl solution is 0.0014 S/cm. Molar conductivity Λ_m:
A140 S·cm²/mol
B14 S·cm²/mol
C1400 S·cm²/mol
D1.4 S·cm²/mol
Answer & Solution
Correct answer: A. 140 S·cm²/mol
Λ_m = κ × 1000 / c (with c in mol/L). = 0.0014 × 1000 / 0.01 = 140 S·cm²/mol. (Or in SI: κ/c with appropriate unit conversion.)
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