E_-_102_F11_Notes

Withoutthesaltbridgetherewouldbeanaccumulationofpositi

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Ag+
(aq)
→
Cu2+
(aq)
+
2
Ag
(s)
 Cu
(s)
→
Cu2+
(aq)
+
___
e‐
 
 (reducing
agent)
 __
Ag+
(aq)
+
___
e‐
→
___
Ag
(s)
 (oxidizing
agent)
 
 Zn
(s)
+
SnCl2
(aq)
→
Zn2+
(aq)
+
Sn
(s)
 Zn
(s)
→
Zn2+
(aq)
+
___
e‐
 
 (reducing
agent)
 Sn2+
(aq)
+
___
e‐
→
Sn
(s)

 
 (oxidizing
agent)
 ___
Zn
(s)
→
___
Zn2+
(s)
+
___
e‐
 (reducing
agent)
 O2
(g)
+
____
e‐
→
2
O2‐
(s)

 (oxidizing
agent)
 
 2
Zn
(s)
+
O2
(g)
→
2
ZnO
(s)
 
 ChE102
Fall
2011
Class
Notes
‐
Electrochemistry
 
 
 
 
 
 
 
 E ‐2 
 Hydronium
Ion
(H3O+)
 Zn
(s)
+
2
H+
(aq)
→
Zn2+
(aq)
+
H2
(g)
 Zn
(s)
→
Zn2+
(aq)
+
2
e‐
 2
H+
(aq)
+
2
e‐
→
H2
(g)
 
 Zn
(s)
+
2
H3O+
(aq)
→
Zn2+
(aq)
+
H2
(g)
+
2H2O
(l)
 Zn
(s)
→
Zn2+
(aq)
+
2
e‐
 2
H3O+
(aq)
+
2
e‐
→
H2
(g)
+
2
H2O
(l)
 
 [see
Petrucci
et
al.,
Figure
5.5]
 These
two
chemi...
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This note was uploaded on 12/28/2011 for the course CHE 102 taught by Professor Simon during the Winter '08 term at Waterloo.

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