If the external source has an emf of 60 v and the

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(a) How many coulombs are required to plate a layer of chromium metal 0.30 mm thick on an auto bumper with a total area of 0.35 m2 from a solution containing CrO42-? The density of chromium metal is 7.20 g/cm3. (in C)

(b) What current flow is required for this electroplating if the bumper is to be plated in 12.0 s? (in A)

(c) If the external source has an emf of +6.0 V and the electrolytic cell is 65 percent efficient, how much electrical power is expended to electroplate the bumper? (in kWh)

Reference no: EM13641347

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