Question

The equivalent conductance of infinite dil (^°) for
Sodium acetate, Sodium chloride and hydrochloric
acid are 78.109 and 384 ohm-1 cm2.eq-1.calculate
(^°) for acetic acid.​

Answer 1

Answer:

Explanation:

According to Kohlraush s law,

Λ∞CH3COONa=λCH3COO−+λNa+=91.0.....(i)

Λ∞HCl=λH++λCl−=426.16.....(ii)

Λ∞NaCl=λNa++λCl−=126.45.....(iii)

Adding eqns. (i) and (ii) and subtracting (iii),

λCH3COO−+λNa++λH++λCl−−λNa+−λCl−  

=91.0+426.16−126.45

λCH3COO−+λH+=Λ∞CH3COOH

=390.7 ohm−1cm2equiv−1