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Electrolytic polarisation using stand material

VC4.4.5.1_s
Electrolytic polarisation using stand material
Electrolytic polarisation using stand material Polarisation on charcoal and copper electrodes
Electrolytic polarisation using stand material

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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 LD
1 524220  4  CASSY Lab 2 LD
1 59151  4  Flat trough/electrolysis cell LD
1 59153  8  Plate electrodes copper 76 x 40 mm, set of 10 LD
1 59161  4  Plate electrodes, carbon, 76x40 mm, set of 5 LD
1 664420  8  Mesh electrodes, platinum, 55 x 40 mm, set of 2 LD
1 500421  4  Connecting lead 19 A, 50 cm, red LD
1 500422  4  Connecting lead 19 A, 50 cm, blue LD
1 50186  4  Crocodile clip, polished LD
1 6738410  4  Sodium hydroxide solution, 0.1 mol/l, 500ml LD
GHS05 Warning H290
1 6729660  4  Copper(II) sulfate solution, 1 mol/l (15 %), 500 ml LD
GHS09GHS05 Danger H318 H400 H410
1 additionally required:
PC with Windows XP/Vista/7/8/10 (x86 or x64)

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) C4.4.5.1s Electrolytic polarisation using stand material
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