- #1

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