The molar conductivities of KCl, NaCl an...

The molar conductivities of KCl, NaCl and `KNO_(3)` are 152,128 and `111" S cm"^(2) mol^(-1)` respectively. What is the molar conductivity of `NaNO_(3)` ?

`101 S cm^(2) "mol"^(-1)`

`87.5 cm^(2) "mol"^(-1)`

`-101 S cm^(2) "mol"^(-1)`

`-391 S cm^(2) "mol"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:

`lambda_(NaNO_(3)) = lambda_(NaCl) + Lambda_(KNO_(3)) - Lambda_(KCl)`
= `87 S cm^(2) "mol"^(-1)`

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