Flashcards
Separation Methods
Cards in this deck (8)
- 1Separating an insoluble solid from a liquid (3 methods)Decanting(solid settled on bottom, pour out the liquid), filtration OR use a centrifuge and then decant
- 2Separating a solute (soluble solid) from a solutionEvaporation followed by crystallization (evaporate the liquid off - not all or crystals won't form - then leave the solid to crystalize)
- 3Separating a mixture of 2 or more solidsUse their different solubilities (copper chloride, sodium chloride and copper carbonate experiment)
- 4Separating a solvent (liquid) from a solutionSimple distillation (heat the solution to evaporate the liquid then condense the vapor back to liquid) (preferably using a Leibig condenser)
- 5Separating a mixture of immiscible liquids (don't mix)Use a separating funnel (they have different densities)
- 6Separating a mixture of miscible liquidsFractional distillation, using a fractionating column and Leibig condenser to exploit difference in boiling points
- 7Separating mixtures of colored substancesPaper chromatography
- 8To identify substances in paper chromatography use...Retention factors (Rf values). Rf = distance traveled by the substance/distance traveled by the solvent. Rf values are usually less than 1.
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- 9o ano Chemistry (Elements, Compounds and Mixtures) Flashcards on Separation Methods, created by Darina Stoyanova on 22/12/2017.
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- Darina Stoyanova
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