Required Practical 2 - Measuring Enthalpy Change (AQA A-Level Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What mass range of anhydrous should be weighed for this practical?
What mass range of anhydrous should be weighed for this practical?
3.90 - 4.10 g
What volume of deionised water is added to the polystyrene cup?
What volume of deionised water is added to the polystyrene cup?
cm
At which minute should the anhydrous copper(II) sulfate be added to the water?
At which minute should the anhydrous copper(II) sulfate be added to the water?
Fourth minute
What is the specific heat capacity of water used in calculations?
What is the specific heat capacity of water used in calculations?
J g K
To how many decimal places should temperature values be recorded?
To how many decimal places should temperature values be recorded?
1 decimal place
Which formula is used to calculate heat energy change?
Which formula is used to calculate heat energy change?
To how many decimal places should the balance weigh chemicals?
To how many decimal places should the balance weigh chemicals?
2 decimal places
Why is a polystyrene cup used as the calorimeter?
Why is a polystyrene cup used as the calorimeter?
For its insulation properties
What is a common error when calculating enthalpy change?
What is a common error when calculating enthalpy change?
Assuming solutions have water's heat capacity
Which improvement increases accuracy in combustion experiments?
Which improvement increases accuracy in combustion experiments?
Using pure oxygen instead of air