How many moles are in 22 grams of argon

Explanation:

It is known that number of moles equal mass divided by molar mass.

Mathematically,  Number of moles =

Since, it is given that mass is 22 grams and molar mass of argon is 40 g/mol.

Therefore,  Number of moles =

                                                 =

                                                 = 0.55 mol

Thus, we can conclude that there are 0.55 moles in 22 grams of argon.