Required practical - Analysis and purification of water (AQA GCSE Chemistry Combined Science): Flashcards
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15 cards from this deck
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Practise the cards
15 cards from this deck
Process to separate pure water from salt water
Process to separate pure water from salt water
Distillation
What happens to water when salt water is heated
What happens to water when salt water is heated
Water boils and turns into water vapour
What happens to salt when salt water is heated
What happens to salt when salt water is heated
Salt does not evaporate, remains in flask
Purpose of anti-bumping granules in distillation
Purpose of anti-bumping granules in distillation
Prevent violent boiling and help water boil smoothly
What flows through the Liebig condenser
What flows through the Liebig condenser
Cold water
What happens to water vapour in the condenser
What happens to water vapour in the condenser
It condenses back into liquid water
Where pure water is collected after distillation
Where pure water is collected after distillation
In a beaker
Boiling point of water
Boiling point of water
Thermometer reading during distillation of salt water
Thermometer reading during distillation of salt water
Where sodium chloride is found after distillation
Where sodium chloride is found after distillation
Left in the original flask
Why distillation separates water from salt
Why distillation separates water from salt
Water has lower boiling point than salt
Function of the condenser in distillation
Function of the condenser in distillation
Cools water vapour back into liquid form
Essential safety equipment for this practical
Essential safety equipment for this practical
Eye protection/safety goggles
Boiling point of sodium chloride (salt)
Boiling point of sodium chloride (salt)
Over
Aim of the distillation practical
Aim of the distillation practical
Obtain pure water from salt water solution