Fundamentals of Chem102A

Question

What is the mass in grams of a sample of carbon dioxide gas that occupies a volume of 5.96L at STP?

I personally do not know where to start

Answer 1

1 mole of a gas occupies 22.4 L at STP

therefore, 5.96 L x (1 mol / 22.4 L) = 0.266 mol CO₂

molar mass of CO₂ = 44 g/mol

0.266 mol CO₂ x (44 g CO₂ / 1 mol CO₂) = 11.7 g CO₂