An Iron corrodes to produce rust, Fe 2 O 3 , but other corrosion products that can form are Fe(O)(OH), iron oxyhydroxide, and magnetite, Fe 3 O 4 . (a) What is the oxidation number of Fe in iron oxyhydroxide, assuming oxygens oxidation number is -2? (b) The oxidation number for Fe in magnetite was controversial for a long time.
An Iron corrodes to produce rust, Fe2O3, but other corrosion products that can form are Fe(O)(OH), iron oxyhydroxide, and magnetite, Fe3O4.
(a) What is the oxidation number of Fe in iron oxyhydroxide, assuming oxygen’s oxidation number is -2?
(b) The oxidation number for Fe in magnetite was controversial for a long time. If we assume that oxygen’s oxidation number is - 2, and Fe has a unique oxidation number, what is the oxidation number for Fe in magnetite?
(c) It turns out that there are two different kinds of Fe in magnetite that have different oxidation numbers. Suggest what these oxidation numbers are and what their relative stoichiometry must be, assuming oxygen’s oxidation number is -2.
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Answer
Chemistry The Central Science
14th Edition
Authors: Theodore Brown, H. LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward, Matthew Stoltzfus
ISBN: 978-0134414232