(b) (i) The molar conductivities of `NH_4^+` and `Cl^-` ion are `73.8 S cm^2 mol^-1` and `76.2 S cm^2 mol^-1` respectively.. the conductivity of 0.1M `NH_4Cl` is `1.29xx10^-2`S `cm^-1`. Calculate its molar conductivity and degree of dissociation.
(ii) Calculate the half-cell potential at 298K for the reaction
`Zn^(2+) + 2e^(-) to Zn`
if `[Zn^(2+)]=0.1M` and `E_(Zn^(2+)//Zn)^o=-0.76V`