
Grade 11Engineering Entrance Exams
At 291 K, the molecular conductivities of dilutions of NH4Cl, NaOH are 129.8, 217.4 A, 108.9 ohm−1 cm2 mol−1 respectively. If molar conductivity of centinormal solution of NH4OH is 9.33 ohm−1 cm2 mol−1. What is the percentage dissociation of NH4OH at this dilution?
(A) 0.392
(B) 39.2
(C) 3.92
(D) 0.039
At 291 K, the molecular conductivities of dilutions of NH4Cl, NaOH are 129.8, 217.4 A, 108.9 ohm−1 cm2 mol−1 respectively. If molar conductivity of centinormal solution of NH4OH is 9.33 ohm−1 cm2 mol−1. What is the percentage dissociation of NH4OH at this dilution?
(A) 0.392
(B) 39.2
(C) 3.92
(D) 0.039




