Verified Solution • 2025–26 Session moderate

QJEEM05Ch77a0: JEE Main 2005 Chemistry - Class 12 JEEM05Ch77a0 Solution: .tg {border-collapse:collapse;border-spacing:0;} .tg…

Electrolyte: KCl KNO3 HCl NaOAc NaCl
∧∞(Scm2mol−1):{ \wedge ^\infty }(Sc{m^2}mo{l^{ - 1}}):
149.9 145 426.2 91 126.5
Calculate ∧HOAc∞\wedge _{HOAc}^\infty Using appropriate molar conductances of the electrolytes listed above at infinite dilution in H2O at 25oC

Multiple Choice Options

  • A 517.2
  • B 552.7
  • C 390.7
  • D 217.5

Step-by-Step Verified Solution

AHCl∞=426.2                     ...(i)A_{HCl}^\infty = 426.2\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,...\left( i \right)

AAcONa∞=91.0                   ...(ii)A_{AcONa}^\infty = 91.0\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,...\left( {ii} \right)

ANaCl∞=126.5                   ...(iii)A_{NaCl}^\infty = 126.5\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,...\left( {iii} \right)

AAcOH∞=(i)+(ii)−(iii)A_{AcOH}^\infty = \left( i \right) + \left( {ii} \right) - \left( {iii} \right)

=[426.2+91.0−126.5]= \left[ {426.2 + 91.0 - 126.5} \right]

=390.7= 390.7

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