When standardised with 0.01 M KCI, a conductivity cell had a resistance of 189 n at 298 K. At same temperature, the resistance was 2460 n with a 0.01 M NH 3 solution. Using the data in table, calculate the Kb of NH3. Cation A-0 (0-cm-mot¹) Anion Ao (n-¹cm²mol-1¹) NH₂+ 734 OH- 198.6 K 735 CE 764 3 96×105 186×10^-5 396x10^-6 1.86×10^-6

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When standardised with 0.01 M KCI, a conductivity cell had a resistance of 189 nat
298 K. At same temperature, the resistance was 2460 n with a 0.01 M NH3
solution. Using the data in table, calculate the Kb of NH3.
Cation
Ao (cm²mot¹)
Anion
Ao (n-¹cm²mol-¹)
NH₂+
734
OH-
198.6
76 4
K
735
CE
3.96×10 5
186x10^-5
396x10^-6
1.86×10^-6
Transcribed Image Text:When standardised with 0.01 M KCI, a conductivity cell had a resistance of 189 nat 298 K. At same temperature, the resistance was 2460 n with a 0.01 M NH3 solution. Using the data in table, calculate the Kb of NH3. Cation Ao (cm²mot¹) Anion Ao (n-¹cm²mol-¹) NH₂+ 734 OH- 198.6 76 4 K 735 CE 3.96×10 5 186x10^-5 396x10^-6 1.86×10^-6
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