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4 cards from this section. Quick, good the night before a test.
What is the standard potential of the Standard Hydrogen Electrode (SHE)?
Recall the definition of SHE.
If a half-cell is oxidized when connected to the SHE, will its E° be positive or negative?
Think about what oxidation means in this context.
What is the defined standard potential of the SHE?
This is the reference point for all other potentials.
True or False: A higher E° value indicates a stronger tendency for a substance to be oxidized.
Think about what oxidation and reduction mean.
Consider a galvanic cell with the following half-reactions:
Ag⁺ + e⁻ → Ag (E° = +0.80 V) Zn²⁺ + 2e⁻ → Zn (E° = -0.76 V) Calculate E°_cell and discuss its implications for the spontaneity of the reaction.
Calculate the cell potential using E° values.
Discuss how the E° values for two substances influence their practical uses as electrodes in battery technology.
Reflect on what these values suggest about electrode behavior.
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