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12 cards from this deck
Separate & identify coloured chemicals in mixtures
2 cm
Ink would dissolve in the solvent
About 1 cm deep
Just above surface, must not touch solvent
Watch glass
When solvent front is about 1 cm from top
Where the solvent stopped moving
On centre of pencil line
From centre of each spot
Rf=Spot distanceSolvent distanceRf = \frac{\text{Spot distance}}{\text{Solvent distance}}Rf=Solvent distanceSpot distance
Identifies chemicals by how far each moved vs solvent
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