1.

Calculate equivalent conductivity at infinite dilution of the salt KOOC-COONa. Given the ionic molar conductivities at infinite dilution are: lambda^(oo)(C_(2)O_(4)^(2-))=148.5S cm^(2)mol^(-1), lambda^(oo)(K^(+))=50.1 S cm^(2) mol^(-1) lambda^(oo)(Na^(+))=73.5 S cm^(2) mol^(-1) and

Answer»

`136.05 S cm^(2)EQ^(-1)`
`544.2 Scm^(2) eq^(-1)`
`272.1 S cm^(2) eq^(-1)`
`27.21 S cm^(2) eq^(-1)`

Solution :Number of faraday `(q_(F))=(9.65xx60xx1.5)/(96500)=9XX10^(-3)F`
`2e^(-)+CU^(+2)rarrCu`
`""(9xx10^(-3))/(2)xx64=0.288`
`4OH^(-)rarrO_(2)+2H_(2)O+4e^(-)`
`""(9xx10^(-3))/(4)xx32=0.072g`
Total wt. loss `=0.288+0.072=0.360g`


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