the molar conductivity at infinite for Nal,CH3COONa and (CH3COO)2 mg are 10.59,7.10 and 16.58 Sm2 respectively at 298k . calculate the molar conductance of MgI at infinite dilute
Answers
Given info : The molar conductivities at infinite dilution for NaI, CH3COONa and (CH3COO)₂Mg are 10.59,7.10 and 16.58 S m² mol−1.
To find : Λ°m for MgI₂ is ....
solution : here
molar conductivity at infinite of NaI , Λ∞ NaI = 10.59 Sm²/mol
Λ∞ CH₃COONa = 7.10 Sm²/mol
Λ∞ (CH₃COO)₂Mg = 16.58 Sm²/mol
Λ∞ MgI = x (let)
molar conductance of MgI at infinite dilution is given as
Λ∞ MgI = Λ∞ (CH₃COO)₂Mg + Λ∞ NaI - Λ∞ CH₃COONa
⇒x = 16.58 + 10.59 - 7.10
⇒x = 20.07
Therefore molar conductance at infinite dilution of MgI is 20.07 Sm²mol¯¹
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