Final answer:
A 2 mole sample of helium would occupy a volume of 44.8 liters under standard temperature and pressure (STP).
Step-by-step explanation:
Under standard temperature and pressure (STP), which is 0 degrees Celsius and 1 atmosphere of pressure, 1 mole of gas occupies a volume of 22.4 liters. Therefore, if we have 2 moles of helium, the volume it occupies at STP is 44.8 liters.
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