C1 - Atoms & Elements

C1 - Atoms & Elements

1. Separating Mixtures

   • Filtration
     • Separates an insoluble solid from a liquid
     • Equipment
       • Funnel, Filter paper, conical flask
     • Residue
       • the solid left in the filter paper
     • Filtrate
       • The liquid that passes through the filter paper
   • Crystallisation
     • Separates a soluble solid from a liquid
       • Equipment
         • Evaporating basin, heat
     • Evaporation
       • The liquid turns to a gas and leaves crystals of the solid behined
   • Chromatography
     • Separates inks and food colours
     • Stationary phase
       • Mobile phase
         • Solvent (water)
       • Paper
     • RF value
   • Distillation
     • Separates two liquids with different boilling points
     • Equipment
       • Round bottomed flask, heat, condenser, beaker
     • Evaporation of one liquid happens in the round bottomed flask
       • The other liquid doesn't evaporate
       • The vapour condenses in the condenser and collects in the beaker