Interpretation:
The thickness and diameter of the steel is 2 in. and 80 in. respectively. It is plated with a 0.0009 in. layer of zinc. The area of plating and weight of zinc required in lb and grams, number of moles of zinc needed, different methods of deposition of zinc on steel substrate and the method selected in this case needs to be determined.
Concept introduction:
The area of the plating can be calculated as follows:
Here, d is diameter and h is thickness of steel.
The weight/mass of the zinc required can be calculated from density and volume as follows:
Here, d is density and V is volume.
The number of moles of zinc needed can be calculated from mass and molar mass as follows:
Here, m is mass and M is molar mass.
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