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3 cards from this section. Quick, good the night before a test.
What does a positive standard electrode potential indicate?
Think about what it means for a substance to gain electrons.
What is the potential of the Standard Hydrogen Electrode (SHE)?
Remember that SHE is our reference point.
What is the purpose of the Standard Hydrogen Electrode?
Think about its role in electrochemical measurements.
If an electrode has a standard potential of -0.45 V, what does this indicate?
Consider the implications of positive versus negative potentials.
Consider two reactions: A⁺/A with E° = +0.50 V and B⁺/B with E° = -0.80 V. Calculate the E°_cell if A is reduced and B is oxidized.
Identify which species acts as anode and cathode before making the calculation.
A certain half-cell has an E° of +0.20 V. If the other half-cell connected is the SHE, determine the potential for the full cell and indicate its spontaneity.
Consider the reference value of SHE in your calculation.
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