The molar ionic conductivities of `NH_(4)^(+) annd OH^(-)` at infinite dilution are 72 and 198 `ohm^(-1)cm^(2)`, respectively, the molar conductivity of a centinormal `NH_(4)OH` solution aththe same temperature is found to be 9 `ohm^(-1)cm^(2)`. The percentage dissociation of `NH_(4)OH` at this concentration will be

Molar conductivities at infinite dilution (at 298 K) of NH_(4)CI , NaOH and NaCI are 129.8, 217.4 and 108.9 Omega^(-1)cm^(-1)mol^(-1) respcetively. If the molar conductivity of a centimolar solution of NH_(4)OH is 9.33 Omega^(-1) cm^(-1) , what is percentage dissociation of NA_(4)OH at this concentation ? Also calculte the dissociation constant for NH_(4)OH .

Limiting molar conductivity of NH_4OH is equal to