Q.
The values of Λeq∞ for NH4Cl , NaOH and NaCl are, respectively, 149.74, 248.1 and 126.4 ohm−1cm2eq−1 . The value of Λeq∈ftyNH4OH is ( in ohm −1cm2eq−1)
Λeq ∞ for NH4Cl can be find out by the relation given below Λeq0 or Λ∞(NH4OH)=Λ∞eq(NH4Cl)+Λ∞eq(NaOH)−Λ∞eq(NaCl) =(149.74+248.1−126.4) =271.44ohm−1cm2eq−1