Question

26.8 moles of argon contain how many atoms?

Answer 1

`26.8xxN_A`, where `N_A="Avogadro's Number"`.

Explanation:

`N_A="Avogadro's Number"= 6.022xx10^23*mol^-1`.

Thus, `"number of Ar atoms"` `=` `6.022xx10^23*cancel(mol^-1)xx26.8cancel(mol)` `=` `??`