Learning objective
Required practical: measure the EMF of an electrochemical cell.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Electrode potentials and electrochemical cells (A-level only)
Subtopic
Standard electrode potentials (A-level only)
Study support
Understand this objective
Quick explanation
Required practical: measure the EMF of an electrochemical cell
- This point belongs to Electrode potentials and electrochemical cells (A-level only), especially Standard electrode potentials (A-level only).
- You need to be able to required practical: measure the EMF of an electrochemical cell.
- The key ideas to know are electrochemical cell.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Standard electrode potentials (A-level only) to exam-style questions, flashcards, and revision notes for Electrode potentials and electrochemical cells (A-level only).
Quick student answer
Which of the following statements about standard electrode potentials is true?
Direct answer
A more positive standard electrode potential indicates a stronger reducing agent.
Key terms
- Oxidation: The loss of electrons or an increase in oxidation state by a molecule, atom, or ion.
- Reduction: The gain of electrons or a decrease in oxidation state by a molecule, atom, or ion.
Common trap
Confusing Oxidation and Reduction: Remember that oxidation involves loss of electrons, while reduction involves gain of electrons.
Related questions
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Describe the standard hydrogen electrode.
Standard electrode potentials (A-level only)
- Define standard electrode potential.
Standard electrode potentials (A-level only)
- Calculate cell potentials from standard electrode potentials.
Standard electrode potentials (A-level only)
- Set up and interpret electrochemical cell diagrams.
Standard electrode potentials (A-level only)
- Predict the feasibility of redox reactions using electrode potentials.
Feasibility and applications of cells (A-level only)