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wedge^(@).(m) for CaCl(2) and MgSO(4) fr...

`wedge^(@)._(m)` for `CaCl_(2)` and `MgSO_(4)` from the given data.
`lambda_(Ca^(2+))^(@)=119.0S cm^(2)mol^(-1)` ltbr. `lambda_(Cl^(c-))^(@)=76.3S cm^(2)mol^(-1)`
`lambda_(Mg^(2+))^(@)=106.0S cm^(2)mol^(-1)`
`lambda_(SO_(4)^(2-))^(@)=160.0 cm^(2)mol^(-1)`

Text Solution

Verified by Experts

`Lambda_(m)^(@) CaCl_(2) = lambda_(Ca^(2+))^(@) + 2 lambda_(Cl)^(@)`
`=119 + 2 xx 76.3 = 271. 6 S cm^(2) mol^(-1)`
`Lambda_(m)^(@) MgSO_(4) = lambda_(Mg^(2+))^(@) + lambda_(SO_(4)^(2-))^(@)`
`=106 + 160 = 266 S cm^(2) mol^(-1)`
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