Convert grams of the gases to mols. mol = grams/molar mass.
Add mols to find total mols = n, then use PV = nRT to solve for volume at the conditions listed. Don't forget T must be in kelvin.
A gaseous mixture consists of 6.95 g of N2, 4.75 g of O2, and 2.75 g of He. What volume does this mixture occupy at 23°C and 1.35 atm pressure?
2 answers
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