Asked by Rishikesh
Chromium metal can be plated onto an object from an acidic solution of dichromate ions. What average current is required to plate 17.8 g of chromium metal in a time of 2.20 h?
Answers
Answered by
DrBob222
amperes x seconds = coulombs.
96,485 coulombs will deposit 1 equivalent weight of Cr.
Equivalent weight Cr = atomic mass/change in number of electrons in the half reaction.
96,485 coulombs will deposit 1 equivalent weight of Cr.
Equivalent weight Cr = atomic mass/change in number of electrons in the half reaction.
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