Required Practical: Analysis & Purification of Water Samples (AQA GCSE Chemistry): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does the term 'potable' mean when referring to water?
What does the term 'potable' mean when referring to water?
Safe to drink
What pH should pure water have?
What pH should pure water have?
7 (neutral)
Which equipment can be used to measure the pH of a water sample?
Which equipment can be used to measure the pH of a water sample?
pH probe or universal indicator paper
What does testing for dissolved solids check for in water?
What does testing for dissolved solids check for in water?
Presence of dissolved salts or minerals
How do you test for dissolved solids in water?
How do you test for dissolved solids in water?
Evaporate water & check for solid residue
What should remain after evaporating pure water from a basin?
What should remain after evaporating pure water from a basin?
No solid residue
What is the purpose of distillation in this practical?
What is the purpose of distillation in this practical?
Separate pure water from impurities
Which piece of apparatus contains the water sample during distillation?
Which piece of apparatus contains the water sample during distillation?
Conical flask
What happens to dissolved solids when water is heated during distillation?
What happens to dissolved solids when water is heated during distillation?
They are left behind in the flask
What is the role of the condenser in distillation?
What is the role of the condenser in distillation?
Cools vapour to condense it to liquid
What precaution should be taken with hot apparatus?
What precaution should be taken with hot apparatus?
Allow time to cool before touching
How should you test the purity of distilled water?
How should you test the purity of distilled water?
Repeat pH & dissolved solids tests