Calculating the number of atoms in X Kilograms of iron

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SUMMARY

To calculate the number of atoms in a given mass of iron, utilize the Avogadro constant, which is approximately 6.022 x 1023 atoms/mol. For 1 kilogram of iron, first convert the mass to moles using the molar mass of iron (approximately 55.85 g/mol). The calculation yields approximately 1.79 x 1024 atoms in 1 kg of iron, expressed in scientific notation as 1.79 x 1024.

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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.
 
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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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