What volume of SO_2 has the same number of molecules as 24.0 L of CO_2 when both are at STP?

May 26, 2017

$24.0 \text{L}$
Therefore, at the same temperature and pressure conditions, two gases will contain equal numbers of molecules if they occupy the same volume. Thus, $24.0 \text{L}$ of ${\text{SO}}_{2}$ will have the same number of molecules as $24.0 \text{L}$ of ${\text{CO}}_{2}$ (both at standard temperature and pressure).