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GRUP 5
Jaume Adell, Hamza Bouderaa,
-We cut the Red
cabbage
-We extracted the
pigment of the Red
Cabbage by boiling it
in water
-We separated the
violet pigment by
filtration
The pigment has this chemical formula
Pigment
Dilluted with water
In the graph we can see the absorbtion in the violet and
green and no absorption for red and blue which gives
the colour to the pigment

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Chemistry_pigments violet cabbage 4t ESO