Converting Moles of Iron to kg: Net Charge Calculation

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The discussion revolves around calculating the mass of iron from moles, where a user initially used the incorrect atomic mass of 192.22 u instead of the correct value for iron, which is approximately 55.85 u. The user calculated the mass as 480.55 g based on the wrong atomic mass, while the correct mass for 2.5 moles of iron should be around 139.6 g. Additionally, the net charge of the iron is questioned, specifically regarding the impact of one atom missing an electron. The conversation highlights the importance of using accurate atomic values in chemical calculations. Accurate knowledge of elemental symbols and their corresponding atomic masses is crucial for solving chemistry problems effectively.
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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
 
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So I did, what the element Ir then?
 
Why Ir? Read the text, it is about Iron.

ehild
 
Yeah I was thinking that Ir was Iron that's where I got the bad value from.
 
Ir is Iridium, Iron is Fe (Ferrum).

ehild
 

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