“Dry ice” is the solid form of carbon dioxide. Determine the number of mass of CO2 gas in grams that are present in 63.9 L of CO2 at STP.

_________________ g CO2. Do NOT enter unit. Report your final answer with 3 SFs.

There are 22.4 L in a mol of gas @ STP

mols CO2 = 63.9/22.4 = ? mols
Then mols CO2 x 44 g/mol = ? grams CO2.