Seperating Mixtures
- Created by: Mgseme2005
- Created on: 29-03-20 17:14
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- Separation Techniques
- Chromatography
- Separates solvent with a number of different solutes in the liquiud
- Place a drop of the solution to be separated near the bottom of the paper. Dip the paper into the solvent. The solvent moves up the paper carrying the solutes in it.
- Different solutes move at different speeds so they separate on paper.
- Filtration
- Separates mixtures of insoluble solids and liquids
- Done by pouring the mixture through filtering paper. The insoluble solid is trapped and liquid goes through and is collected below.
- Crystallisation
- Heat the mixture so that the solvent evaporates. Eventually crystals of the solute will form. We can collect the solvent buy condensing it as it evaporates.
- Fractional Distillation
- Separates loads of liquids with different boiling points.
- The mixtures is slowly heated until the liquid with the lowest boiling point boils and condenses . Then the temperature is slowly raised to collect the other fractions.
- Simple Distillation
- Separates two liquids with different boiling points
- The mixture is heated until the liquid with the lower boiling point starts to boil. The vapour released passes through a condenser where the gas cools back into a liquid.
- Chromatography
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