Which Contains More Moles of Material: 80 Grams of Helium

question 11

Multiple Choice

Which contains more moles of material: 80 grams of helium gas (He,having atomic weight 4.0 g/mol) or 400 grams of argon gas (Ar,having atomic weight 40 g/mol) ?

• A) helium
• B) argon
• C) Both contain the same number of moles.

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