How many moles of iron are in 0.067 gram sample of iron oxide?

1 Answer
anor277
Jan 26, 2017

Well if its #"ferric oxide"#..........

Explanation:

#"Ferric oxide"#, #Fe_2O_3#, has a molar mass of #159.69*g*mol^-1#.

#"Moles of ferric oxide"=(0.067*g)/(159.69*g*mol^-1)=4.20xx10^-4mol#.

Of course it could be #"ferrous oxide"#, #FeO#, or another iron oxide, so I don't think that this question was well-proposed.

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