A mixture containing only al2o3 fw10196 and fe2o3 15969, Ask an Expert

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A mixture containing only Al2O3 (FW101.96) and Fe2O3 (159.69) weighs 2.019 g.When heated under a stream of hydrogen, theAl2O3 is unchanged butFe2O3 is converted to metallic Fe plusH20(g). If a residue weighs 1.529 g, what is the wt% of Fe2O3 in the original mixture?

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