Converting Moles of Iron to kg: Net Charge Calculation

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Homework Help Overview

The problem involves calculating the mass of a piece of solid iron based on its moles and determining the net charge when a specific number of atoms are missing an electron. The subject area is chemistry, focusing on atomic mass and charge calculations.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to calculate the mass of iron using an atomic mass value but questions the validity of their result. Participants discuss the correct atomic mass of iron and clarify the chemical symbols for iron and iridium.

Discussion Status

Participants are engaged in clarifying the atomic mass of iron and correcting the original poster's misunderstanding regarding the chemical symbols. There is no explicit consensus yet on the calculations or the implications of the missing electron.

Contextual Notes

The original poster expresses confusion about the atomic mass used and its implications for the mass calculation. There is a misunderstanding regarding the chemical symbols for iron and iridium, which may affect the discussion.

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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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