Making soluble salts (Edexcel GCSE Chemistry): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
Why is the acid heated in a water bath in Method 1?
Why is the acid heated in a water bath in Method 1?
To speed up the reaction
Why must heating be done in a fume cupboard in Method 1?
Why must heating be done in a fume cupboard in Method 1?
To avoid inhaling acid fumes
Why is the insoluble base added until it is in excess?
Why is the insoluble base added until it is in excess?
To ensure all acid is neutralised
How is excess solid base removed from the solution?
How is excess solid base removed from the solution?
Using filter paper and a funnel
How are salt crystals dried after filtering?
How are salt crystals dried after filtering?
In a warm oven or by air drying
Why can't excess alkali be added to acid in Method 2?
Why can't excess alkali be added to acid in Method 2?
Both alkali and salt are soluble
What is titration used for in Method 2?
What is titration used for in Method 2?
To find the exact neutralisation point
What piece of equipment measures the acid volume in titration?
What piece of equipment measures the acid volume in titration?
A pipette
What piece of equipment holds the alkali during titration?
What piece of equipment holds the alkali during titration?
A burette
What is the end point in a titration?
What is the end point in a titration?
When the indicator changes colour
Why is the titration repeated without an indicator?
Why is the titration repeated without an indicator?
To avoid contaminating the salt
Why should universal indicator not be used for titrations?
Why should universal indicator not be used for titrations?
The colour change is too gradual