Cell Notation and Diagrams for Redox Reactions
Explore various redox reactions through detailed cell notations and diagrams, including components of anode and cathode compartments, oxidation and reduction half-cells, salt bridge usage, and overall reactions. Visual representations provided for better understanding.
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Presentation Transcript
Cell Notation for representing the cell diagram components of anode compartment components of cathode compartment (oxidation half-cell) (reduction half-cell) Salt bridge Right for Reduction 2R Zn(s) + Cu2+(aq) Zn2+(aq) + Cu(s) From Anode To Cathode FAT Cat e- flow Zn(s) | Zn2+(aq) || Cu2+(aq) | Cu (s) Phase boundary
2 Anode (Ox) : Cathode (Red) : Cr(s) Cr3+(aq) + 3e- 3 Cu2+(aq) + 2e- Cu(s) Overall reaction: 2Cr(s) + 3Cu2+(aq) 2Cr3+(aq) + 3Cu(s) Cell Diagram e- V salt bridge Cathode (+) Anode (-) Cr(s) Cu(s) Cu2+(aq) Cr3+(aq) Cr(s) | Cr3+(aq) || Cu2+(aq) | Cu (s) Cell Notation
2MnO4-(aq) + 16H+(aq) + 10I-(aq) 2Mn2+(aq) + 5I2(s) + 8H2O(l) Reduction half-reaction MnO4-(aq) + 8H+(aq) + 5e- Oxidation half-reaction 2I-(aq) I2(s) + 2e- Mn2+(aq) + 4H2O(l) Cell Diagram Cell Notation graphite (s) | I-(aq) | I2(s) || H+(aq), MnO4-(aq) , Mn2+(aq) | graphite (s) inert electrode
2 Anode (Ox) : Cathode (Red) : Fe3+(aq) Fe3+(aq) + e- Cl2 (g) + 2e- 2Cl- (aq) Overall reaction: 2 Fe3+(aq) + Cl2 (g) 2Fe3+(aq) + 2Cl- (aq) Cell Diagram e- V salt bridge Cathode (+) Anode (-) Pt Eletrode Cl2(g) at 1 atm, 25 oC Fe3+(aq) 1 M Pt Electrode Cl- (aq) 1 M Cell Notation Fe2+(aq) 1 M Pt (s) | Fe2+(aq, 1 M),Fe3+(aq, 1 M) || Cl2(g, 1 atm) | Cl- (aq, 1 M) | Pt (s)
