What is the volume of 1.2 moles of water vapor at STP?

...is specified to be $22.4 \cdot L \cdot m o {l}^{-} 1$. Where $\text{STP}$ specifies $1 \cdot a t m$, and $273.15 \cdot K$.
Given $1.2 \cdot m o l$ of gaseous water, or indeed any gas....we gots the product......
$1.2 \cdot m o l \times 22.4 \cdot L \cdot m o {l}^{-} 1 \cong 27 \cdot L$