Question

Find the number of moles of argon in 452 g of argon

Answer 1

no. of moles = given mass/atomic mass

= 452/40

= 11.3.

Thus, there are 11.3 moles

Answer 2

nó of moles =given mass/molar mass
no of moles=452/39.9
therefore no of moles=11.3moles