Flashcards

filtration and crystallisation

Melissa Anoble Chemistry Year 11 Inglês 7 flashcards

Flashcards do conjunto (7)

1state some mixtures that can be separated by filtration- a mixture of sand and water
-Filtration is used to separate an insoluble solid from a liquid. It is useful for separating sand from a mixture of sand and water, or excess reactant from a solution.
2method of filtration1) One beaker contains a mixture of solid and liquid, the other contains a funnel with filter paper
2) The solid and liquid mixture is poured into the filter funnel
3)The liquid drips through the filter paper but the solid particles are caught in the filter paper
3method of crystallisation1) A solution is placed in an evaporating basin and heated with a Bunsen burner.
2) The volume of the solution has decreased because some of the water has evaporated. Solid particles begin to form in the basin.
3) All the water has evaporated, leaving solid crystals behind.
4explain the formation of crystals during crystallisationthe salt should start to form crystals as it becomes insoluble in the cold, highly concentrated solution, filter the crystals out of the solution and leave them in a warm place to dry.
5HAZARD: Hot apparatusHARM: Skin burns
PRECAUTION: Allow apparatus to cool before touching it
6HAZARD: Bunsen burner flameHARM: Skin burns
PRECAUTION: Allow apparatus to cool before touching it
7HAZARD 2: Bunsen burner flameHARM: Fire
PRECAUTION: Do not bring flammable solvents near to the flame

Descrição: Year 11 Chemistry (Unit 1) FlashCards sobre filtration and crystallisation, criado por Melissa Anoble em 21-04-2018.
Criado por: Melissa Anoble · abr 2018
Atualizado: 22 abr 2018
Visualizações: 1
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