Determination of the Oxygen Content of Air

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 experiment:

1	664 0771	Reaction tube, quartz, 160 x 20 mm Ø, GL 18
1	664 079	Copper wire gauze, roll, 80 x 7.5 mm Ø
1	665 912	Gas syringe, 100 ml
1	665 914	Gas syringe, 100 ml with 3-way stopcock
1	665 936	Immersion tube manometer, after Schiele
1	666 714	Cartridge burner, DIN type
1	666 724	Wide-flame attachment
1	300 76	Laboratory stand II
6	666 4660	Adhesive magnetic board, 300 mm
5	666 4665	Holder, magnetic, size 5, 30...32 mm
1	666 428	Panel frame C100, two-level, for CPS
1	667 312	Glass connector, 2 x GL 18

 

Experiment instructions please click here: