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Voltaic cell & Danielle cell
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Voltaic Cell Daniell Cell
CHEMICAL CELL
Structure of Voltaic Cell
Copper (Cu)Zinc (Zn)
Sulphuric Acid (H2SO4)
Structures of Daniell Cell
Using salt bridge Using porous pot
Production of Electricity from Voltaic Cell
Zinc Copper
Sulphuric acid
KNaCaMgAlZnFeSnPbHCuHgAgAu
KNaCaMgAlZnFeSnPbHCuHgAgAu
Har
der
to r
emov
e el
ectr
ons
Connector wire
At zinc electrode (anode) zinc release electron to form ion.
Zn (p) Zn2+(aq) + 2e-
the released electrons reassemble at zinc plat.
At copper electrode (cathode) the released electrons by zinc flows to copper’s
electrode by connector wire. H+ ions (from water) & Zn2+ moves to copper’s
electrode. H+ ions discharge because of its position is lower in
electrochemical series. 2H+(aq) + 2e- H2(g)
In connector wire electron flows from negative terminal positive
terminal continuously electrical current. electrons flows voltmeter indicator removes.
Overall equation
Zn(s) + 2H+ (aq) Zn 2+(aq) + H2(g)