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GCSE Chemistry 2020-2022 OCR Gateway

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Pregunta:

How do you do Crystallisation?

Autor: eric_galvao



Respuesta:

1. Pour your solution into an Evaporating Basin and heat it up gently. 2. Some of the Solvent [Water usually] will evaporate making your Solution more concentrated. 3. When some of your solvent has evaported OR when you can see crystals start to form, remove the dish from the heat and allow it to cool. 4. The salt now will now form crystals as its insoluble in the cold, highly concentrated solution. 5. Filter the crystals out of the solution and let them rest in a warm place to dry. Alternatives could be a Drying Oven or a Desiccator [This contains Chemicals that remove water from the surroundings.]


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