Making Simple Cells (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 is the main objective of the simple cells experiment?
What is the main objective of the simple cells experiment?
To measure EMF from electrode combinations
Why are metal electrodes cleaned with sandpaper before use?
Why are metal electrodes cleaned with sandpaper before use?
To remove any oxide layer
What solution is used to prepare the salt bridge?
What solution is used to prepare the salt bridge?
Saturated potassium nitrate
Where should the positive terminal of the voltmeter be connected?
Where should the positive terminal of the voltmeter be connected?
To the electrode with higher reduction potential
What concentration of metal ion solutions is used initially?
What concentration of metal ion solutions is used initially?
1.0 mol dm
In dilution, 25 cm of solution is diluted to what volume?
In dilution, 25 cm of solution is diluted to what volume?
250 cm
Why are measured EMF values usually lower than calculated values?
Why are measured EMF values usually lower than calculated values?
Due to non-standard conditions
What happens to EMF as ion concentration decreases?
What happens to EMF as ion concentration decreases?
EMF decreases
In the Nernst equation, what does represent?
In the Nernst equation, what does represent?
Number of electrons in half-reaction
What was the measured EMF for / and /?
What was the measured EMF for / and /?
1.04 V