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6.5 (a) Voltaic Cell and Danielle Cell Structure

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Voltaic cell & Danielle cell

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Page 1: 6.5 (a) Voltaic Cell and Danielle Cell Structure
Page 2: 6.5 (a) Voltaic Cell and Danielle Cell Structure

Voltaic Cell Daniell Cell

CHEMICAL CELL

Page 3: 6.5 (a) Voltaic Cell and Danielle Cell Structure

Structure of Voltaic Cell

Copper (Cu)Zinc (Zn)

Sulphuric Acid (H2SO4)

Page 4: 6.5 (a) Voltaic Cell and Danielle Cell Structure

Structures of Daniell Cell

Using salt bridge Using porous pot

Page 5: 6.5 (a) Voltaic Cell and Danielle Cell Structure

Production of Electricity from Voltaic Cell

Zinc Copper

Sulphuric acid

KNaCaMgAlZnFeSnPbHCuHgAgAu

KNaCaMgAlZnFeSnPbHCuHgAgAu

Har

der

to r

emov

e el

ectr

ons

Connector wire

Page 6: 6.5 (a) Voltaic Cell and Danielle Cell Structure

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)

Page 7: 6.5 (a) Voltaic Cell and Danielle Cell Structure

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)