ElectroChemistry oxidation-reduction

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Determining whether a species can be oxidized or reduced by an ion involves understanding its position in the reactivity series and examining redox potentials. For example, H+ can oxidize species like Fe2+ and Ce3+, while H2 can reduce species such as Ce4+ and Fe3+. Utilizing redox potential tables and the Nernst equation is essential for accurate assessments of these reactions. The reactivity series provides a general guideline, but redox potentials offer precise insights into the likelihood of oxidation or reduction occurring in specific conditions.
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How do you know when a species can be oxidized or reduced my an ion?
For ex. Which of the species can be oxidized by H+ and which species can be reduced by H2?
Ce4+, Ce3+, Fe2+,Fe3+,Fe, Mg2+,Ni2+,Sn
 
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Depending on the level you should either use reactivity series or redox potentials from tables - or use redox potentials from tables and Nernst equation.
 
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