Question
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
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.
Related Questions
A car bumper is plated with chromium using chromium(III) ions in solution. If a current of 54 A flow...
Chromium metal can be plated onto an object from an acidic solution of dichrmonate tions. What avera...
To 90.0mL of a solution that contains 0.100M Cr(NO3)2 and 0.490M HNO3 is added 30.0mL of 0.170M K2Cr...
A car bumper is plated with chromium using chromium (III) ions in solution. If a current of 53.2 A...