The molar conductance of NaCl, HCl and CH3COONa at infinite dilution are 126.45,426.16 and 91.0 S cm2 mol–1 respectively. The molar conductance of CH3COOH at infinite dilution is. Choose the right opt

Question

The molar conductance of NaCl, HCl and CH3COONa at infinite dilution are 126.45,426.16 and 91.0 S cm2 mol–1 respectively. The molar conductance of CH3COOH at infinite dilution is. Choose the right option for your answer.

(A) 201.28 S cm2 mol–1
(B) 390.71 S cm2 mol–1
(C) 698.28 S cm2 mol–1
(D) 540.48 S cm2 mol–1

Prashant Kotian · Accepted Answer

Correct answer: A. ¥ Lm (NaCl) = 126.45 Scm2 mol–1 ¥ Lm (HCl) = 426.16 Scm2 mol–1 ¥ L = 3 m(CH COONa) 91 Scm2 mol–1 \ ¥ ¥ ¥ ¥ L = L + L L 3 3 m(CH COOH) m(CH COONa) m(HCl) m(NaCl) – = 91 + 426.16 – 126.45 = 391.72 Scm2 mol–1 2 Final NEET(UG)-2021 Exam/12-09-2021

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