for NaCl, HCl and NaOAc are 126.4, 425.9 and 91.0 S cm2 mol-1 respectively. Calculate ∧° for HOAc

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CUET Chemistry 10th Aug 2022 Official Paper
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  1. 390.5 S cm2 mol-1
  2. 643.3 S cm2 mol-1
  3. 461.3 S cm2 mol-1
  4. 208.5 S cm2 mol-1

Answer (Detailed Solution Below)

Option 1 : 390.5 S cm2 mol-1
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CUET General Awareness (Ancient Indian History - I)
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Detailed Solution

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Explanation:

Kohlrausch's law states that the equivalent conductivity of an electrolyte at infinite dilution is equal to the sum of the conductances of the anions and cations. If salt is dissolved in water, the conductivity of the solution is the sum of the conductances of the anions and cations.

Given,  for NaCl, HCl and NaOAc are 126.4, 425.9 and 91.0 S cm2 mol-1 

= (425.9 + 91.0 – 126.4) S cm2 mol–1 

= 390.5 S cm2 mol–1 

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