distillation

• what are the 2 types of distillation?

  Simple and fractional distillation
• what is simple distillation?

  separating a dissolved solid from a liquid whilst keeping the liquid
• steps of simple distillation?

  1. evaporate the liquid by heating - turns it into vapour
  2. condense the vapour back into liquid by cooling
• what is the purpose of the flask?-SD

  to put our liquid and dissolved solid in
• how does the condenser work?- SD

  H20 out of the condenser and the cold H20 into the condenser. cold H20 from the tap continuously runs through the condenser = keeps the glass tube cold
• what is the thermometer's purpose in SD?

  Measure temperature
• how does simple distillation work?

  1. heat the solution with a bunsen burner
  2. as the solution is heated the liquid starts to condense into a vapour
  3. vapour rises up the glass tube
  4. as vapour passes over the thermometer, the reading increases
  5. heat solution until it boils
  6. vapour passes into the condenser - cold water in condenser causes the vapour to condense turning back to a liquid
  7. collect liquid in the beaker
  8. in the flask there solid crystals left behind
• what is a negative about simple distillation?

  great amount of energy is needed
• what can simple distillation be used for?

  drinking water
• what is fractional distillation?


  these liquids must have different boiling points