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pat666
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Homework Statement
A piece of solid Iron contains 2.5moles of atoms. Whats its mass? suppose one atom in 10^12 were missing one electron, what would be the net charge of the iron?
Homework Equations
The Attempt at a Solution
atomic mass 192.22u
so mass should be 2.5*192.22 = 480.55g but the answer is 139.6g. I suck at chem and don't have a clue where I went wrong?
Thanks