01:160:163 Lecture Notes - Lecture 24: Electroplating, General Chemistry, Ion
19 May 2016
School
Department
Course
Professor
Document Summary
Electrolysis: using electricity to generate a nonspontaneous chemical reaction. The presence of multiple cations in a solution will facilitate the reduction of the most easily reduced cations present first (this cation will have the highest eo potential reduction value) The same process will occur when there are multiple anions present in the solution, except tat the most easily oxidized anion will be oxidized first (this anion will have the lowest reduction value) Therefore, the reaction with the lowest (least negative) voltage will occur first in the cell reaction. Cathode is where the work takes place. Instead of the regular oxidation and reduction directions of the cathode and anode . The cations will be reduced in the cathode. And they plate to the surface of the work piece present in the cell. The anions will be oxidized in the anode. The anode replaces the metal cation in the solution.
