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The acidic reactions of ethanoic acid

Description

Acids are an important group of chemicals. Organic acids are characterised by the presence of a -COOH group attached to a carbon atom. In this experiment, some typical properties of a weak organic acid are observed.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
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Reacting copper(II) oxide with sulfuric acid.

Apparatus Chemicals

Eye protection

Each group of students will need:

Test-tube rack

Test-tubes, 6

Beakers (100 cm3), 2

Glass rod

Dropping pipettes, 2

Access to

A flame for testing hydrogen (but keep away from magnesium)

Universal indicator pH colour chart (Full range pH 1-14)

For extension, each group of students will need:

Spatula

Filter paper

Test tubes, 2

Magnesium ribbon, two 1 cm strips

Ethanoic acid solution, 0.05 M, 15 cm3

Hydrochloric acid solution, 0.05 M, 15 cm3

Sodium hydroxide solution, 0.4 M (IRRITANT), 5 cm3

Sodium carbonate solution, 0.4 M, 5 cm3

Universal indicator solution (full range, pH 1-14) (HIGHLY FLAMMABLE), a few drops

For extension, each group of students will need:

Copper carbonate (HARMFUL), 0.5 g

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

 


Wear eye protection.








Acids are an important group of chemicals. Organic acids are characterised by the presence of a -COOH group attached to a carbon atom. In this experiment, some typical properties of a weak organic acid are observed.

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 .