Friday, 27 September 2013

Separating Techniques

  • A solid from a liquid = Filtration
  • A solid from a solution of the solid = Evaporation
  • Two liquids with different boiling points = Distillation e.g. Water and ink
  • Liquids with diff. boiling points = Fractional Distillation e.g. Crude oil
  • Dyes in a solution = Chromatography
Find RF value:
  • Distance travelled by dye / Distance travelled by solvent