Seperating mixtures Flashcards
simple distillation separates..
soluble solid and solvent - collect and keep the solvent
dissolving separates..
a soluble solid from a insoluble solid
filtration separates..
an insoluble solid and a liquid
separating funnel separates..
2 immisible liquids
paper chromatography separates..
coloured dyes
evaporation separates..
a soluble solid from a solution
fractional distillation separates..
a misable (mixable) liquids
crystallisation..
makes a hydrated solid (crystals) from a solution
the important features of the chromatography are..
the number of spots, the colour of the spots, the positioning of the spots
the results for paper chromatography for each coloured dye can be calculated by..
Rf = distance moved by food dye from base line/distance moved by solvent from base line