Required Practical: Analysis & Purification of Water Samples (AQA GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does this practical determine about water samples?
What does this practical determine about water samples?
Their quality & suitability for drinking
What pH should pure water have?
What pH should pure water have?
7 (neutral)
Which equipment is used to measure the pH of water?
Which equipment is used to measure the pH of water?
pH probe or universal indicator paper
What should remain after evaporating pure water?
What should remain after evaporating pure water?
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 dissolved solids
Which apparatus is NOT used in the distillation setup?
Which apparatus is NOT used in the distillation setup?
Evaporating basin
What happens to dissolved solids during distillation?
What happens to dissolved solids during distillation?
Left behind in the conical flask
What pH should distilled water have after purification?
What pH should distilled water have after purification?
Close to 7
What precaution prevents burns from hot apparatus?
What precaution prevents burns from hot apparatus?
Allow hot apparatus time to cool
Why should experiments be repeated in this practical?
Why should experiments be repeated in this practical?
To confirm results are consistent