The equivalent conductivity of a solution containing 2.54g of CuSO4 per L is 91.0 W-1 cm2 eq-1. Its conductivity would be?

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Equivalent conductivity = Λe=κ×1000C C is the concentration in gram equivalent per litre or Normality.Mass of CuSO4 = 2.54 gMolar mass of CuSO4=159.5 gNumber of electron taking part or transferred = 2Normality =molarity×no. of electrons transferred= massmolecular mass×10001000×2Hence, Normality =2.54159.5×2=0.0318 N of CuSO4κ=Λe×C1000=91×0.03181000=2.89×10-3 S cm-1

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