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KS 3 laboratory Separating mixtures De Lisle Catholic Science College Science department.

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Presentation on theme: "KS 3 laboratory Separating mixtures De Lisle Catholic Science College Science department."— Presentation transcript:

1 KS 3 laboratory Separating mixtures De Lisle Catholic Science College Science department

2 DissolvingFiltering EvaporatingDistillation Virtual laboratory: Separating mixtures menu

3 Dissolving model solvent solution solute Dissolve solute

4 Filtering filter paper glass rod cloudy liquid filter funnel filtrate (clear) Label diagram

5 Filtering model filter paper solvent particles insoluble particles dissolved particles insoluble particles are unable to pass through the tiny holes in the filter paper How does filtering work? Start filtration

6 Filtering and dissolving key words Key wordExplanation solid that will not dissolve solid that will dissolve liquid that will dissolve solids liquid with dissolved solid solid that has dissolved clear filtered liquid solution that is ‘full up’ Insoluble Soluble Solvent Solution Filtrate Solute SolubleSolventInsolubleSoluteFiltrateSolution Saturated Key words

7 Heat Evaporation model solvent vapour dissolved particles What happens to the dissolved solid particles? dissolved solid gets left behind and forms crystals Heat some solvent particles

8 Distillation using a Leibig condenser thermometer cooling water jacket distillate (pure water) boiling inky water steam Reading?100 O C What is in the bubbles? steam Add labels What happens to dissolved solids? dissolved solids get left behind

9 Evaporation and distillation key words Key wordExplanation change from a liquid to a gas change from a gas to a liquid an evaporated liquid (a gas) purifying a liquid by first evaporating then condensing a distilled liquid Distil Evaporate Condense Vapour Distillate Evaporate CondenseVapourDistilDistillate Key words

10 Fractional distillation How does fractional distillation work? –it can separate a mixture of liquids that have different boiling points –the mixture is slowly heated until the liquid with the lowest boiling point starts to boil off from the mixture –this liquid is collected by condensing it

11 KS 3 laboratory De Lisle Catholic Science College Exit Thank you for your visit to our virtual laboratory


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