What volume does 0.500 moles of an ideal gas occupy at standard temperature and pressure (STP: 0 °C and 1.00 atm, where molar volume is 22.4 L/mol)?
Answer and explanation
Correct answer: D. 11.2 L
At standard temperature and pressure (STP), one mole of an ideal gas occupies 22.4 L. For 0.500 moles: V = n V_m = 0.500 mol 22.4 L/mol = 11.2 L.
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