# How many moles of magnesium are in 3.01 times 10^22 atoms of magnesium?

May 16, 2018

$0.05$ moles

#### Explanation:

In a mole of any substance, there exist $6.02 \cdot {10}^{23}$ units of that substance.

So here, we got:

3.01*10^22color(red)cancelcolor(black)(Mg \ "atoms")*(1 \ "mol")/(6.02*10^23color(red)cancelcolor(black)(Mg \ "atoms"))

$= 0.05 \setminus \text{mol}$