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Displacement series for non-metals

Description

Potassium sulfide, chloride, bromide and iodide are tested with oxygen and chlorine to establish which non-metallic elements are displaced.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
displacement-series-for-n...



Apparatus Chemicals

The teacher or each working group will require:

Eye protection

Access to a fume cupboard

Test-tubes, 4

Test-tube rack

Polythene bag (Note 1)

Rubber bung, one hole, fitted with 10 cm length of glass tubing

About 15 cm3 each of the following 0.2 M solutions:

Potassium bromide

Potassium chloride

Potassium iodide

Potassium sulfide (IRRITANT)

Bromine water, 0.02 M (HARMFUL), 5 cm3

Chlorine water, 0.04 M (HARMFUL), 5 cm3

For teacher use only:

Oxygen (Oxidising), cylinder with rubber delivery tube to fit glass tubing in bung (Note 2)

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

 






Potassium sulfide, chloride, bromide and iodide are tested with oxygen and chlorine to establish which non-metallic elements are displaced.

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.