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Influence of a change in temperature on the chemical equilibrium /
Influence of a change in temperature on the chemical equilibrium

Influence of a change in temperature on the chemical equilibrium

LC3.5.2.1

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Description

The chemical equilibrium can be influenced by several factors according to Le Chatelier's principle. In this experiment the students make a blue and a green copper complex. Both complexes can be transformed into each other by heating and cooling in an equilibrium reaction. In this way, the students experience the temperature dependence of chemical equilibria in this experiment.

Components of equipment sets

1	30945 4	Universal pencil
1	667057 4	Test tube rack metal, 20 mm Ø
1	667031 4	Test tube holder 20 mm Ø
1	661091 4	Boiling stones 100 g
3	6659531 4	Dropping pipette 150 mm x 7 mm Ø
3	6659541 8	Dropper bulb
2	6640421 4	Test tube Fiolax 16 mm x 160 mm
1	610010 8	Laboratory safety goggles
1	667609 4	Safety gloves, nitrile rubber, size 8
1	6667031 8	Teclu burner, propane
1	6729660 4	Copper(II) sulfate solution, 1 mol/l (15 %), 500 ml Danger H318 H400 H410
1	6746750 4	Hydrochloric acid, conc., 25 %, 250 ml Danger H314 H335 H290
1	6753410 4	Water, pure, 5 l

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Influence of a change in temperature on the chemical equilibrium

Description

Components of equipment sets

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