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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