Karteikarten
Separating mixtures: filtration, evaporation and distillation
Karten in diesem Stapel (5)
- 1Chromatography
- 2FiltrationFiltration is good for separating an insoluble solid from a liquid. (An insoluble substance is one that does not dissolve).
Sand, for example, can be separated from a mixture of sand and water using filtration. That's because sand does not dissolve in water. - 3EvaporationThis is good for separating a soluble solid from a liquid (a soluble substance does dissolve, to form a solution).
For example copper sulphate crystals can be separated from copper sulphate solution using evaporation. Remember that it is the water that evaporates away, not the solution. - 4Simple distillationThis is good for separating a liquid from a solution. For example, water can be separated from salty water by simple distillation. This method works because the water evaporates from the solution, but is then cooled and condensed into a separate container. The salt does not evaporate and so it stays behind.
- 5Fractional distillationThis is good for separating two or more liquids from each other. For example, ethanol (alcohol) can be separated from a mixture of ethanol and water by fractional distillation. This method works because the two liquids have different boiling points.
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- Karteikarten am Ohne Titel, erstellt von kclolkat am 16/05/2014.
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- kclolkat
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