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Silver and lead halides

Description

Insoluble silver and lead halides form as precipitates when solutions of silver of lead salts are added to solutions containing halide ions.

Type of Activity

:
demonstration, class practical

Audience

:
Teacher

Age Group

:
14 to 18 years

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
silver-and-lead-halides



Apparatus Chemicals

Eye protection

Access to a fume cupboard

Each demonstration or working group requires:

Test-tube rack

Test-tubes, 6

Boiling tubes, 3

Test-tube holder (to fit a boiling tube)

Teat pipettes, 2

Beaker (250 cm3 or 500 cm3)

Bunsen burner

For optional part:

Test-tubes, 3

Teat pipettes, 2

Corks or rubber bungs to fit test-tubes, 3

For optional part, in a fume cupboard:

Teat pipettes

Corks or rubber bungs to fit test-tubes, 3

Potassium chloride solution, 0.1 M, about 30 cm3

Potassium bromide solution, 0.1 M, about 30 cm3

Potassium iodide solution, 0.1 M, about 30 cm3

Silver nitrate solution, 0.05 M (DANGEROUS FOR THE ENVIRONMENT), about 1 cm3

Lead nitrate solution, 0.1 M (TOXIC, DANGEROUS FOR THE ENVIRONMENT), about 1 cm3

For optional part, in a fume cupboard:

Dilute ammonia solution ~0.1 M, about 10 cm3

Concentrated ammonia solution (CORROSIVE, DANGEROUS FOR THE ENVIRONMENT), a few cm3

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

 








Page last updated October 2015

Insoluble silver and lead halides form as precipitates when solutions of silver of lead salts are added to solutions containing halide ions.

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.

The resource image was supplied by science photo library https://www.sciencephoto.com/