There are [tex]3.82\times 10^{24}[/tex]atoms of iron in 354 grams of iron.
Explanation:
Given:
The 354 grams of iron.
To find:
The number of iron atoms is 1.2 grams of iron
Solution:
The mass of iron = 354g
The molar mass of iron = 55.845 g/mol
The moles of iron :
[tex]=\frac{354g}{55.845g/mol}=6.339mol\approx 6.34mol[/tex]
According to the mole concept:
[tex]1 mol= N_A=6.022\times 10^{23} atoms/molecules/ions[/tex]
The number of atoms of iron in 6.34moles of iron :
[tex]=6.34\times 6.022\times 10^{23} atoms=3.82\times 10^{24} atom[/tex]
There are [tex]3.82\times 10^{24}[/tex]atoms of iron in 354 grams of iron.
Learn more about the mole concept here:
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