Verified Solution • 2025–26 Session moderate

QNEET-2021-Ch-562: NEET 2021 Chemistry - Class 12 NEET-2021-Ch-562 Solution: The molar conductance of NaCl HCl and \(CH_3COONa\) at infinite …

The molar conductance of NaCl HCl and CH3COONaCH_3COONa at infinite dilution are 126.45 426.16 and 91.0 S cm2 mol−191.0\ \text{S cm}^2\ mol^{-1} respectively. The molar conductance of CH3COOHCH_3COOH at infinite dilution is. Choose the right option for your answer. 540.48 S cm2 mol−1540.48\ \text{S cm}^2\ mol^{-1} 201.28 S cm2 mol−1201.28\ \text{S cm}^2\ mol^{-1} 390.71 S cm2 mol−1390.71\ \text{S cm}^2\ mol^{-1} 698.28 S cm2 mol−1698.28\ \text{S cm}^2\ mol^{-1}

Multiple Choice Options

  • A 540.48 S cm 2 mol −- _ 1
  • B 201.28 S cm 2 mol −- _ 1
  • C 390.71 S cm 2 mol −- _ 1
  • D 698.28 S cm 2 mol −- _ 1

Step-by-Step Verified Solution

According to Kohlrausch law of independent migration of ions. _ m o ( C H 3 C O O H ) = _ m o ( C H 3 C O O N a ) + _ m o ( H C l ) _ _ m o ( N a C l ) = 91.0 S cm 2 mol _ 1 + 426.16 S cm 2 mol _ 1 _ 126.45 S cm 2 mol _ 1 = 390.71 S cm 2 mol _ 1

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