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Combustion of hydrogen in air

Description

In this experiment hydrogen is burnt with some air. The aim of the experiment is to find out how much air is needed to burn hydrogen most efficiently.

Credits

:
This is an experiment from the Practical Chemistry project, developed by the Nuffield Foundation and the Royal Society of Chemistry.
combustion-of-hydrogen-in...



Apparatus Chemicals

For one demonstration:

Eye protection

Glass or plastic trough

Test-tubes, 3

Test-tube rack

Delivery tube, for gas collection over water (Fig. 1)

Rubber bungs, to fit test-tubes, 3

Waterproof marker pen

Wooden splints

Boss, clamp and stand

Class experiment, for each group:

Eye protection

Conical flask (100 cm3)

One-hole bung, to fit flask

Delivery tube for gas collection over water (Fig. 1)

Glass or plastic trough for gas collection

Measuring cylinder (50 cm3)

Test-tubes, 3

Rubber bungs, to fit test-tubes, 3

Test-tube rack

Waterproof marker pen

Wooden splints

Boss, clamp and retort stand

Access to a fume cupboard, for storing hydrogen generators after use.

For one demonstration:

Access to a source of hydrogen gas (EXTREMELY FLAMMABLE): cylinder and regulator, or chemical generator (Generation, collection and testing of gases) fitted with length of rubber tubing.

Class experiment, for each group:

Hydrochloric acid, 2 M (IRRITANT) 50 cm3

Zinc, granulated 4 - 5 g

Copper(II) sulfate solution, about 0.5 M (MINIMAL HAZARD) a few drops

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

 


 







Page last updated July 2016

In this experiment hydrogen is burnt with some air. The aim of the experiment is to find out how much air is needed to burn hydrogen most efficiently.

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.