27. Solution to Chemistry Problem

27. Solution to Chemistry Problem

6. Determine the thickness of the zinc coating obtained in 30 minutes in an alkaline zincate electrolyte at a temperature of 250C, a current density of 1 A/dm2, a current efficiency of 92%, and in a sulfuric acid electrolyte for the same time at a current density of 5 A/dm2 and a current efficiency of 90%. The molecular weight of zinc is 65.38, the density of the metal is 7.14 g/cm3.

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