Core practical - Analysis and purification of water (AQA GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the main purpose of distillation in this practical?
What is the main purpose of distillation in this practical?
To obtain pure water from salt water
Which safety equipment must always be worn during this practical?
Which safety equipment must always be worn during this practical?
Eye protection (safety goggles)
What is the purpose of anti-bumping granules in distillation?
What is the purpose of anti-bumping granules in distillation?
To prevent dangerous violent boiling
What type of condenser is used in this distillation apparatus?
What type of condenser is used in this distillation apparatus?
Liebig condenser
What is the first step in the distillation procedure?
What is the first step in the distillation procedure?
Pour salt water into round-bottomed flask
What does the cold water flowing through the condenser do?
What does the cold water flowing through the condenser do?
Cools down the steam
What happens when you heat the salt water?
What happens when you heat the salt water?
Only the water boils, salt stays behind
What does the water turn into when heated during distillation?
What does the water turn into when heated during distillation?
Water vapour (steam)
What happens to the steam in the condenser?
What happens to the steam in the condenser?
It condenses back into liquid water
How can you test if your water is truly pure after distillation?
How can you test if your water is truly pure after distillation?
Check for chloride ions
Why doesn't the salt distill with the water?
Why doesn't the salt distill with the water?
Water evaporates but salt doesn't
Why must the mixture be heated gently during distillation?
Why must the mixture be heated gently during distillation?
To prevent too violent boiling