Chromatography
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Chromatography is a technique used to separate mixtures.
The mixture is passed through another substance (filter paper).
​The different colour ink particles travel at different speeds through the filter paper allowing us to see the constituent colours of the marker ink.
Filtration​
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Filtration is used to separate an insoluble solid from a pure liquid or a solution.
Filtration usually involves using a circle of filter paper.
Method
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Get a sample of the solution to be filtered e.g. sand and water. This is an insoluble solution meaning the solute cannot dissolve in the solvent.
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Identify the solute and solvent.
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Solute - sand
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Solvent - water
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Place a funnel over a conical flask and insert a circle of filter paper into the funnel.
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Pour your sample into the funnel.
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Only water passes through and the sand remains suspended in the filter paper.
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The water is now known as the filtrate and the sand is referred to as the residue.
