The molar conductances of NaCl, HCl and CH3COONa at infinite dilution are 126.45 , 426.16 and 91 ohm–1 cm2 mol–1 respectively. The molar conductance of CH3COOH at infinite dilution in ohm–1 cm2 mol–1 is
698.28
540.48
201.28
390.71
The molar conductances of NaCl, HCl and CH3COONa at infinite dilution are 126.45 , 426.16 and 91 ohm–1 cm2 mol–1 respectively.
λ∞NaCl = λ∞Na+ + λ∞Cl– ........(1)
λ∞HCl = λ∞H+ + λ∞Cl– ........(2)
λ∞CH3COONa = λ∞CH3COO– + λ∞Na+ ........(3)
λ∞CH3COOH = λ∞CH3COO– + λ∞H+
from (1),(2) and (3) equation, we get
λ∞CH3COOH = λ∞CH3COONa + λ∞HCl − λ∞NaCl
λ∞CH3COOH = 91 + 426.16 − 126.45 = 390.71 ohm–1 cm2 mol–1
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