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The question asked to rank Pt, Pb, and Cu in order of increasing power going from their neutral to second oxidation state. I assumed this meant we had to switch the signs of each Eº, considering all of their reactions were listed backward. And since reducing power increases with a more negative Eº, I got the order Pb(+0.13 V) < Cu(-0.34 V) < Pt(-1.2 V). What did I do wrong?
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