The `lamda^(@)` values of `KNO_(3)` and `LiNO_(3)` are 145.0 and 110.1 S `cm^(2)mol^(-1)` respectively. The `lamda^(@)` value of `K^(+)` ion is `73.5"S "cm^(2)mol^(-1)`. Calculate `lamda^(@)(Li^(+))`.

Explanation

`wedge_(KNO_(3))^(@)=145Omega^(-1)cm^(2)mol^(-1)`
`wedge_(LiNO_(3))^(@)=110Omega^(-1)cm^(2)mol^(-1)`
`wedge_(K^(+))^(@)=73.5Omega^(-1)cm^(2)mol^(-1)`
`wedge_(KNO_(3))^(@)=wedge_(K^(+))^(@)+wedge_(NO_(3))^(@)`
`145=73.5+wedge_(NO_(3))`
`71.5=wedge_(NO_(3))^(@)`
`wedge_(LiNO_(3))^(@)=wedge_(Li^(+))^(@)+wedge_(NO_(3))^(@)`
`110=wedge_(Li^(+))^(@)+71.5`
`wedge_(Li)^(@)=110-715=38.5Omega^(-1)cm^(2)mol^(-1)`