Which contains more moles of material: 80 grams of helium or 400 grams of argon?
A)the helium
B)the argon
C)Both contain the same number of moles.

Name: Which contains more moles of material: 80 grams of helium or 400 grams of argon? A)the helium B)the argon C)Both contain the same number of moles.
Brand: Quizplus
Rating: 4.9 (40 reviews)

Question

Quizplus · Accepted Answer

The molar mass of helium is 4 g/mol, so 80 grams of helium is 20 moles. The molar mass of argon is 40 g/mol, so 400 grams of argon is 10 moles. Therefore, helium contains more moles.

Which Contains More Moles of Material: 80 Grams of Helium