Required Practical: Preparation of a Soluble Salt (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 type of salt is produced in this practical?
What type of salt is produced in this practical?
A soluble salt
Which insoluble metal base is used in this practical?
Which insoluble metal base is used in this practical?
Copper(II) oxide
Which acid is used to prepare the salt?
Which acid is used to prepare the salt?
Hydrochloric acid
What is the name of the salt produced?
What is the name of the salt produced?
Copper(II) chloride
Why is the acid heated at the start?
Why is the acid heated at the start?
To increase the reaction rate
How do you know when all the acid has reacted?
How do you know when all the acid has reacted?
Excess CuO remains undissolved
Why is the solution filtered after adding CuO?
Why is the solution filtered after adding CuO?
To remove unreacted excess CuO
What happens when the solution is heated in a water bath?
What happens when the solution is heated in a water bath?
Water evaporates
What is crystallisation?
What is crystallisation?
Formation of crystals on cooling
Why is copper(II) oxide used in excess?
Why is copper(II) oxide used in excess?
To neutralise all the acid
What is the balanced equation for this reaction?
What is the balanced equation for this reaction?
What is the final step to obtain pure salt?
What is the final step to obtain pure salt?
Dry the crystals