Question

At infiinite dilution, the aqueous solution of `BaCl_(2)`. M olar conductivity of `Ba^(2+)` and `Cl^(-)` ions are =127.32 S `cm^(2)` /mol and 76.34S `cm^(2)`/mol respectively what is `^^_(m)^(@) ` for `BaCl_(2)` at same dilution?
A. `280Scm^(2)"mol"^(-1)`
B. `330.98S cm^(2)"mol"^(-1)`
C. `90.98S cm^(2)"mol"^(-1)`
D. `203.6S cm^(2) "mol"^(-1)`

Answer 1

Correct Answer - A
`^^_(m)^(oo)=^^_(Ba^(2+))^(oo)+2lambda_(Cl^(-))^(oo)`
`=127.32+2xx76.34`
`=280S cm^(2) "mol"^(-1)`