Match the correct description to the separation technique. 7H Separation techniques - Summary Match the correct description to the separation technique.   Description A…is used to separate small amounts of two or more solids which are soluble in the same solvent.   B…is used to separate a soluble solid from the liquid to obtain the solute. C…is used to separate a soluble solid and a liquid to obtain the solvent. D…is used to separate an insoluble solid from a liquid. Name 1 Evaporation…   2 Filtration… 3 Chromatography… 4 Distillation…

boiling condensing collecting 7H Separation techniques – Distillation How can you separate the solvent from the solids dissolved in a solution?   The best method to separate and collect the solvent from a solution is distillation. Distillation involves three stages:   boiling condensing collecting TEACHER’S NOTES - discuss other methods so far - filtration, evaporation, chromatography

7H Separation techniques – Distillation Where in the distillation equipment do boiling, condensing and collecting take place? thermometer Liebig condenser boiling gas cools and condenses flask with mixture water in liquid boils off water out heat one of liquids in mixture gas turned back to a liquid heat mat

1. Hot gas passes down the inner tube. 7H Separation techniques – Distillation The most important piece of kit for distillation is the Liebig condenser.   water in water out 2. Cold water in the outer tube cools the hot gas, which condenses to become a liquid. 1. Hot gas passes down the inner tube. 3. The liquid is collected at the bottom. Cold water enters the outer tube at the bottom and warm water leaves the outer tube at the top. Why does this happen?  

Watch the demo on fractional distillation: Explain what is happening at each stage, in your own words. Use the keywords from today.

Explain how this equipment can be used to prove that ink is made from a coloured solid and water.