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Q-13
OBSERVATIONS SHEET - EXPERIMENT Q
VOLTAIC CELLS AND REDOX REACTIONS
Part I:
Electrode Potentials (1.0 mark)
Record ALL readings.
Positive readings represent spontaneous voltaic reactions.
Red
Cathode
Black
Anode
+
-
Cu/Cu
2+
Cd/Cd
2+
Pb/Pb
2+
Zn/Zn
2+
Ag/Ag
+
Cu/Cu
2+
Cd/Cd
2+
Pb/Pb
2+
Zn/Zn
2+
Ag/Ag
+
Part I C: Cell Voltages with C
(graphite)
/(I
-
, I2, I3
-
)
(Record only
positive voltages.
If reading is negative, reverse the leads.)
( I2, I3
-
, I
-
)
Which is the Positive Electrode?
Cu/Cu
2+
Ag/Ag
+
