Answer:
The answer is
→ 3.008896419986146
Explanation:
[tex]18.12*10^2^3[/tex] → [tex]1.812e+24[/tex] [tex]atoms[/tex]
[tex]1.812e+24[/tex] [tex]atoms[/tex] → [tex]3.008896419986146[/tex] [tex]moles[/tex]
Hope this helped! If it didn't, then I'm deeply sorry.