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Electrolytic polarisation using stand material

Electrolytic polarisation using stand material

VC4.4.5.1_s

Polarisation on charcoal and copper electrodes

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Description

In experiment C4.4.5.1 the voltage during an electrolysis is raised starting from zero. Note that there is no significant flow of current until a certain voltage level is reached. That voltage is called the decomposition voltage or the deposition voltage. It is the combination of the polarisation voltage and the overvoltage. Both parameters depend on the electrode material. Different electrode materials are investigated in experiment C4.4.5.1.

Components of equipment sets

1	524011USB 8	Power-CASSY USB
1	524220 4	CASSY Lab 2
1	59151 4	Flat trough/electrolysis cell
1	59153 8	Plate electrodes copper 76 x 40 mm, set of 10
1	59161 4	Plate electrodes, carbon, 76x40 mm, set of 5
1	664420 8	Mesh electrodes, platinum, 55 x 40 mm, set of 2
1	500421 4	Connecting lead 19 A, 50 cm, red
1	500422 4	Connecting lead 19 A, 50 cm, blue
1	50186 4	Crocodile clip, polished
1	6738410 4	Sodium hydroxide solution, 0.1 mol/l, 500ml Warning H290
1	6729660 4	Copper(II) sulfate solution, 1 mol/l (15 %), 500 ml Danger H318 H400 H410
1		additionally required: PC with Windows XP/Vista/7/8/10/11 (x86 or x64)

Experiment Instructions

PDF (Experiment description)

C4.4.5.1s Electrolytic polarisation using stand material

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Electrolytic polarisation using stand material

Description

Components of equipment sets

Experiment Instructions

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