Nickel is to be deposited on a platinum cathode area120cm2

Reference no: EM13383339

Nickel is to be deposited on a platinum cathode (area=120cm2) from a solution that is 0.200M in Ni2+ and buffered to a pH of 2.00. Oxygen is evolved at a partial pressure of 1.00 atm at a platinum anode with an area of 80cm2. The cell has a resistance of 3.15 omega; temperature is 25 degree celsius. Calculate:

a) The thermodynamic potential needed to initiate the deposition of nickel

b) The IR drop for a current of 1.10A

c) The current density at the anode and the cathode

d) the initial applied potential, given that the over-voltage of oxygen on platinum is approximately 0.52V under these conditions

e) The applied potential when the nickel concentration has decreased to 2.00*10^-4 M. (Assume that all variables other than Ni2+ remain constant).

Reference no: EM13383339

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