Calculating the number of atoms in X Kilograms of iron

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Homework Help Overview

The original poster is attempting to calculate the number of atoms in a given mass of iron, specifically asking about 1 kilogram. The subject area involves concepts from chemistry and atomic theory.

Discussion Character

  • Exploratory, Conceptual clarification

Approaches and Questions Raised

  • Some participants suggest using the Avogadro constant as a potential approach, while the original poster expresses confusion about what the Avogadro constant is.

Discussion Status

The discussion is ongoing, with some guidance provided regarding the Avogadro constant. However, there remains a lack of clarity for the original poster about its application and relevance to the problem.

Contextual Notes

The original poster has specified a requirement to express the answer in scientific notation with one significant figure, which may influence the approach taken in the calculations.

Sun44
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Homework Statement



I'm having trouble with this. I need to calculate the number of atoms in iron. How do I do this? For example if I had 1 KG of iron, how many atoms are in it?



Homework Equations



I need to give an answer in scientific notation
A x 10^B
A being 1 significant figure, and B being whole number


The Attempt at a Solution



No idea what to do.
 
Physics news on Phys.org
Try using the Avogadro constant.
 
Nytik said:
Try using the Avogadro constant.

Whats that?
 
https://www.youtube.com/watch?v=AsqEkF7hcII
 

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