Answer : The number of moles of argon in 364 g of argon is, 9.1 moles
Solution : Given,
Given mass of argon = 364 g
Molar mass of argon = 40 g/mole
Formula used for determining the number of moles :
![\text{Moles of argon}=\frac{\text{Given mass of argon}}{\text{Molar mass of argon}}](https://img.qammunity.org/2020/formulas/chemistry/middle-school/7gmfc9fut1tmr7yh3uam97ba48mj6rb0y9.png)
Now put all the given values in this formula, we get the number of moles of argon.
![\text{Moles of argon}=\frac{\text{Given mass of argon}}{\text{Molar mass of argon}}=(364g)/(40g/mole)=9.1g](https://img.qammunity.org/2020/formulas/chemistry/middle-school/7mho7tzsljahvoczaxbzu1x8rpfvw0kwxw.png)
Therefore, the number of moles of argon in 364 g of argon is, 9.1 moles