80. Solving a chemistry problem

4. At 18°C, the specific electrical conductivity of a 5% solution of Mg(NO3)2 ϰ = 4.38⋅10–2 Ohm–1⋅cm–1, its density d = 1.038 g/cm3. Calculate the equivalent electrical conductivity λ of this solution and the apparent degree of salt dissociation in the solution α if the ion mobilities are λ0Mg2+= 44.6 and λ0NO3- = 62.6 Ohm-1 ⋅cm2.