seperation techniques

• what is filtration used for ?

  It is used to seperate an insoluble solid from a liquid
• what can filtration also be used for ?

  purification
• what are some equipment used for filtration ?

  Filter paper, filter funnel, filter flask.
• what is crystallisation used for ?

  Used to separate a dissolved solid from a solution
• label the parts of this filtration diagram

  A) solid and liquid

  B) filter paper

  C) filter funnel

  D) liquid only

  
• label the parts of crystillation in this diagram

  A) heat

  B) crystillised solution

  C) solute will strat to crystallise after evaporation

  
• what is simple distillation. ?

  used to separate a liquid and soluble solid from a solution
• what is fractional distillation ?

  The separation of a mixture into its components based on their different boiling points.
• what is paper chromatography technique used for ?

  used to separate substances that have different solubilities in a given solvent
• why should we use pencil instead of ink when drawing the line on the chromatography paper ?

  pencil is used instead because the ink would run into the chromatogram along with the samples
• label this diagram showing chromatography

  A) beaker

  B) water filled up in beaker below the line

  C) pencil line

  D) black ink mixture separated into 3 substances