How many moles are in 45 g of chlorine, Cl2\text{Cl}_2Cl2?
Relative atomic mass (ArA_{\text{r}}Ar): Cl=35.5\text{Cl} = 35.5Cl=35.5
0.63 mol0.63\text{ mol}0.63 mol
0.79 mol0.79\text{ mol}0.79 mol
1.27 mol1.27\text{ mol}1.27 mol
1.58 mol1.58\text{ mol}1.58 mol