Calculate how thick layer of nickel is formed on a metal plate when a current of 100 m A is lead 30 mins through a solution containing Ni2+-ions. The area of the plate is 0.10 m2.
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Expert's answer
2012-04-19T07:39:38-0400
m = Mw*I*t/n*F
m - mass Mw - molecular weight n - the numberof electronsinvolved in the process I - electric current F - Faraday constant t - time
m = 58.69*0.1*(30*60)/2*96485.3 = 0.05475
density is 8.908 g/cm3
V = 0.05475/8.908 = 0.0061456 cm3 h = 0.0061456/0.1 = 0.061456 cm or 0.61456 mm
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