# How many moles of methane gas are in 43.8 liters of methane gas at STP?

Feb 9, 2016

At STP $1$ $m o l$ of ideal gas has a volume of $22.4$ $L$.
$\frac{43.8 \cdot \cancel{L}}{22.4 \cdot \cancel{L} \cdot m o {l}^{-} 1}$ $\approx$ $2$ $m o l$ $C {H}_{4}$.