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Electrolysis of copper(II) sulfate solution

Description

In this experiment you will carry out the electrolysis of copper(II) sulfate solution. The outcomes of the experiment link well with the industrial electrolytic refining of copper.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
electrolysis-of-copper-ii...



Apparatus Chemicals

Eye protection

Each group of students will require:

Beaker (250 cm3)

Graphite electrodes (about 5 mm diameter), 2

Retort stand and clamp to hold electrodes (Note 1)

DC power supply (6 volt)

Light bulb (small, 6 volt, 5 watt) – optional (Note 2)

Leads and crocodile clips

Aqueous copper(II) sulfate, about 0.5 M, 200 cm3

Copper strips (optional), 2 (Note 3)

Small pieces of emery paper

Refer to Health & Safety and Technical notes section below for additional information.

 






In this experiment you will carry out the electrolysis of copper(II) sulfate solution. The outcomes of the experiment link well with the industrial electrolytic refining of copper.

ADDITIONAL INFORMATION

This is a resource from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry. This collection of over 200 practical activities demonstrates a wide range of chemical concepts and processes. Each activity contains comprehensive information for teachers and technicians, including full technical notes and step-by-step procedures. Practical Chemistry activities accompany Practical Physics and Practical Biology.