Answer :
The molecullar mass for Argon is 40g / mole.
So, 1 mole...................40g
x moles ................ 22g
x=22 / 40 = 0,55 moles of Argon
So, 1 mole...................40g
x moles ................ 22g
x=22 / 40 = 0,55 moles of Argon