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12 cards from this deck
Separate & identify coloured chemicals in mixtures
Black ink
2 cm
Ink would dissolve in the solvent
About 1 cm deep
Centre of the pencil line
Ink spot must not touch the solvent
When solvent front is 1 cm from top of paper
Solvent front line & circle ink spots
From centre of each spot to starting line
Rf=spot distancesolvent distanceRf = \frac{\text{spot distance}}{\text{solvent distance}}Rf=solvent distancespot distance
Identifies different chemicals in the ink
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