State Kohlrausch’s law. Calculate the molar conductance of Sr(NO_{3})_{2} . The molar ionic conductance ofSr^{2+} and NO^{-}_{3} ions are 119\; S\; cm^{2}\; mol^{-1} and 72\; S\; cm^{2}\; mol^{-1} respectively.

 

 

Answers (1)

Kohlrausch’s law states that Limiting molar conductivity of an electrolyte can be represented as the sum of the individual contributions of the anion and cation of the electrolyte.

Molar conductivity of Sr(NO_{3})_{2} = λ0Sr+2 + 2 λ0NO3- =119 + (2 x 72) = 263 Scm2/mol

 

 

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