1.

Chromium metal can be plated out from anacidic solution containing CrO3 according to the following reaction:CrO3+6H++6e−→Cr+3H2OCalculate the mass (m) of chromium plated out by 24000 coulomb.Also, find the time (t) it will take to plate out 1.5 g of chromium using 12.5 A current.Current efficiency is 40%Molecular weight of Cr is 52 g mol−1

Answer»

Chromium metal can be plated out from an

acidic solution containing CrO3 according to the following reaction:

CrO3+6H++6eCr+3H2O

Calculate the mass (m) of chromium plated out by 24000 coulomb.

Also, find the time (t) it will take to plate out 1.5 g of chromium using 12.5 A current.

Current efficiency is 40%

Molecular weight of Cr is 52 g mol1



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