5. Determine the density of the solution ρ g/cm3 with the mass fraction ω% of the electrolyte, if the molar electrical conductivity of this solution is Λ Sm•cm2/mol at 291K, and the specific electrical conductivity of the indicated solution is κ Sm/cm.
ω,% 5
Electrolyte KCl
A, Sm*cm2/mol 99.9
k*104, cm/cm 690

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