Answer:-
Solution:- To convert atoms to moles we divide the number of atoms by Avogadro number.
The given number of atoms is [tex]4.186*10^2^4[/tex] and we are asked to calculate the number of moles of Al that are equivalent to these number of atoms. Let's divide the atoms by Avogadro number:
[tex]4.186*10^2^4 atoms(\frac{1 mole}{6.022*10^2^3 atoms})[/tex]
= 6.951 moles
Hence, 6.951 moles of Al are equivalent to [tex]4.186*10^2^4 atoms[/tex] .
