Electrode Potentials & Electrochemical Cells (A Level only) (AQA A-Level Chemistry): Flashcards

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Representing Cells
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What is the anode?

Negative electrode where oxidation occurs

What is the cathode?

Positive electrode where reduction occurs

Salt bridge usual composition

Filter paper soaked in KNO3KNO_3

What does | represent in cell notation?

Phase boundary within half-cell

What does || represent in cell notation?

Salt bridge between half-cells

What goes on left in cell notation?

Oxidation half-cell (more negative potential)

What goes on right in cell notation?

Reduction half-cell (less negative potential)

ROOR mnemonic

Reduced, Oxidized, Oxidized, Reduced

Device used to measure cell EMF

High-resistance voltmeter

Common inert electrode material

Pt (platinum)

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