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Electrochemical Cell (Galvanic, Voltaic)
Zn + 2AgNO3 → 2Ag + Zn(NO3)2
Zn0 + 2Ag+NO3- → 2Ag0 + Zn2+(NO3-)2
Zn0 - 2e- → Zn2+ (oxidized) LEO
Ag+ + 1e- → Ag0 (reduced) GER
Since Zin is the stronger R.A., it is oxized.
Electrolyicc Cell
2Na+Cl-(l) → 2Na0(l) + 212-(g)
+ ANODE (OX) 2Cl- → Cl2 + 2e-
- CATHODE (RED) 2Na + + 2e- → 2Na
1) Battery pushei e- to cathode(-)
2) Na+ pick up e-. conc. Na METAL(R)
3) Battery withdraw 5 e- from anode(+). conc. Cl- lose e-, conc. Cl0(o)
Zn + 2AgNO3 → 2Ag + Zn(NO3)2
Zn0 + 2Ag+NO3- → 2Ag0 + Zn2+(NO3-)2
Zn0 - 2e- → Zn2+ (oxidized) LEO
Ag+ + 1e- → Ag0 (reduced) GER
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Zinc Loses electrons to Ag+ Silver+ Gain electrons to become Ag0 "Change of solutions must be Neutral" Reaction Half; 2Ag+ + 2e- → 2Ag0 Zn0 → Zn2+ + 2e- Net Reaction; Zn0 + 2Ag+ → Zn2+ + 2Ag0 |
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W.O.A. = Weak Oxidized Agent S.O.A. = Strong Oxidized Agent W.R.A. = Weak Reduced Agent S.R.A. = Strong Reduced Agent |
Since Zin is the stronger R.A., it is oxized.
Electrolyicc Cell
2Na+Cl-(l) → 2Na0(l) + 212-(g)
+ ANODE (OX) 2Cl- → Cl2 + 2e-
- CATHODE (RED) 2Na + + 2e- → 2Na
1) Battery pushei e- to cathode(-)
2) Na+ pick up e-. conc. Na METAL(R)
3) Battery withdraw 5 e- from anode(+). conc. Cl- lose e-, conc. Cl0(o)
PR
