Answer:
#moles Ar = 2 x 10⁴¹ moles
Explanation:
A mole is the mass of substance that contains 6.023 x 10²³ particles of specified substance. So, one might think 'how many 6.023 x 10²³rds are in 12.044 x 10⁶⁴ atoms. That is ...
moles Ar = 12.044 x 10⁶⁴atoms / 6.023 x 10²³ atoms/mole = 2 x 10⁴¹ moles of Argon.
