Question
in the crystal str of Fe3O4 Fe2+& Fe3+ occupy resp.
50% octatrahedral &12.5% tetrahedral viods
Joshi sir comment
let atom of O = 1
so 50% Fe++ in octahedral void = 1*1/2 = 1/2
and 12.5 % Fe+++ in tetrahedral voids = 2*1/8 = 1/4
so total Fe = 1/2 + 1/4 = 3/4
so name of the compound = Fe3/4O = Fe3O4
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SARIKA SHARMA 12 year ago
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