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topic 11906

Mathematic relationships in electroplating?


I need some mathematical formulas about electroplating, such as the relationship between mass of plating material and the coating on the object to be plated. ASAP!


Pamela Krajewski
- Rhode Island


Well, the relationship you gave as an example is simply the density of a metal, Pamela. Something more unique to electroplating is expressed by Faraday's Law of Electrolysis: one Faraday of electricity (96,485 coulombs) deposits one gram equivalent weight of metal. You didn't say what grade you were in, so I don't know if you know what a gram equivalent weight is yet though. Study it; it's the most important mathematical relationship in electroplating, and maybe in all of chemistry. Good luck.

Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey

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