How many molecules of an ideal gas are contained in a 7.00 L flask at STP (standard temperature and pressure)?
1mol of gas at STP has volume = 22.4 litres
7 litres of gas will contain: 7/22.4 = 0.313 mol gas at STP.
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1mol of gas at STP has volume = 22.4 litres
7 litres of gas will contain: 7/22.4 = 0.313 mol gas at STP.