STP (standard temperature and pressure) is used as a reference point for the molar volume of an ideal gas. In the USA, most chemists, most general chemistry texts, and OWL use STP=0C, 1 atm, where the molar volume = 22.4 L/mol. If the reference pressure is chosen to be 1 bar, the molar volume is 22.7 L/mol. Do not confuse the two. A sample of carbon dioxide gas collected at STP occupies a volume of 46.8 L. How many moles of gas does the sample contain? mol Submit Answer Retry Entire Group 4 more group attempts remaining What volume is occupied by a 1.48 mol sample of methane gas at a temperature of 0 C and a pressure of 1 atm? L Submit Answer Retry Entire Group 4 more group attempts remaining