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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

The correct Answer is:
271.6 ` , 266 S cm^(2) mol^(-1)`
`Lambda^(@) (CaCl_(2)) = lambda^(@) (Ca^(2+)) + 2lambda^(@) (Cl^(-))`
`= 271.6 S cm^(2) mol^(-1)`
`Lambda^(@) (MgSO_(4)) = lambda^(@) (Mg^(2+)) + lambda^(@) (SO_(4)^(2-))`
`= 266 S cm ^(2) mol^(-1)`
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