The ease to remove an electron from an element is also related to cell potential.
• Smaller (↓) E° → oxidation → weaker oxidizing agent
• Larger (↑) E° → reduction → stronger oxidizing agent
Fe2+ + 2 e‒ ⇌ Fe E° = ‒0.41 V
Fe3+ + 3 e‒ ⇌ Fe E° = ‒0.04 V
Which of the following reagents would oxidize Fe to Fe2+ , but not Fe to Fe3+ ?
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