Separating Mixtures Separating Mixtures Separating Mixtures Mixing sulphur

Separating Mixtures

Separating Mixtures

Separating Mixtures Mixing sulphur and iron. . . how could you separate this mixture?

Separating Mixtures

Do not put magnetic directly on iron Hold the magnet below the Petri dish Sulphur + Iron mixture Petri dish Magnet

Separating Mixtures You’re stranded on a desert island surrounded by sea water, sadly your science teacher is lost at sea but luckily all your science equipment has washed up. . . how could you separate a mixture of sand, salt and water to get drinking water?

Separating Mixtures: Filtration filter paper Mixture (salt, sand, water) filter funnel Mixture (filtrate) (salt and water)

Separating Mixtures: Evaporation Water Mixture Evaporating dish (salt and water) Bunsen burner

Separating Mixtures: Distillation What is happening here? Water Vapour Mixture (salt and water) Bunsen burner Water (distillate)

Separating Mixtures – Additional Method Chromatography is a method used to separate liquids based on their properties (mass of the molecules, ionic charge, etc. ) One type of chromatography is called paper chromatography and a diagram is shown on the next slide.

Paper Chromatography

Paper Chromatography • As the solvent flows upward along the paper, it dissolves and carries the liquid sample with it • Sample separates according to its properties, leaving different spots. Each spot is a different substance.