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Determination of the oxygen content of air

Determination of the oxygen content of air

VC1.4.1.1

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Description

Experiment C1.4.1.1 determines the oxygen content of air. The determination of the oxygen content uses the fact that certain substances can react quantitatively with oxygen to form oxides. For this purpose, the oxygen of a defined volume of air is reacted with copper and removed from the gas space as copper oxide.

From the resulting reduction in volume, the oxygen content of the original air can be easily calculated in per cent by volume. The gas remaining in the apparatus can be studied further: One can find out that it does not sustain combustion.

Components of equipment sets

1	6640771 4	Reaction tube, quartz, 160 x 20 mm Ø, GL 18
1	664079 4	Copper wire gauze roll 80 x 7.5 mm Ø
1	665912 4	Gas syringe, 100 ml
1	665914 4	Gas syringe, 100 ml with 3-way stopcock
1	665936	Immersion tube manometer, after Schiele
1	666714 4	Cartridge burner, DIN type Warning H220
1	666724 4	Wide-flame attachment
1	30076	Laboratory stand II
6	6664660 8	Adhesive magnetic board 300 mm
3	6664665 8	Holder, magnetic, size 5, 30...32 mm
2	6664661 8	Holder, magnetic, size 1, 9...11 mm
1	666428 8	Panel frame C100, two-level, for CPS
1	667312 8	Glass connector, 2 x GL 18