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Molar conductivities (lamda(m)^(@)) at i...

Molar conductivities `(lamda_(m)^(@))` at infinite dilution of NaCl, HCl and `CH_(3)COONa` are 126.4, 425.9 and 91.0S `cm^(2) mol^(-1)` respectively `Lamda_(m)^(@) " for " CH_(3)COOH` will be

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According to Kohlrauch.s law
`lambda_(CH_(3)COOH)^(0) =lambda_(CH_(3)COO^(-))^(0)+lambda_(H^(+))^(0) .....(1)`
`lambda(NaCl)^(0)=lambda_(Na)^(0)+lambda_(Cl^(-))^(0) .......(2)`
`lambda_(HCl)^(0)=lambda_(H^(+))^(0)+lambda_(Cl^(-))^(0) .......(2)`
`lambda_(HCl)^(0)=lambda_(H^(+)) ^(0)+lambda_(Cl^(-))^(0) .......(3)`
`lambda_(CH_(3)COONa)^(0)=lambda_(CH_(3)COO^(-))^(0)+lambda_(Na^(+))^(0).......(4)`
Adding equation (3) and (4) and substracting equation (2) from it, equation (1) can be obtained
`lambda_(H^(+))^(0)+lambda_(CH_(3)COO^(-))^(0) +lambda_(Na^(+))^(0)-lambda_(Na^(+))^(0)-lambda_(Cl^(-))^(0)=426.1+91.0-126.4`
`lambda_(CH_(3)COO^(-))^(0)+lambda_(H^(+))^(0)=390.7 ohm^(-1) cm^(2) gm eq^(-1)`
`wedge_(CH_(3)COOH)^(0)=390.7 ohm^(-1) cm^(2) gm eq^(-1)`
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