# What pressure will be exerted by 2.01 mol hydrogen gas in a 6.5 L cylinder at 20°C?

May 5, 2017

$P = \frac{n R T}{V} =$, which equation is this? I get approx. $6 \cdot a t m$
$P = \frac{n R T}{V} = \frac{2.01 \cdot m o l \times \frac{0.0821 \cdot L \cdot a t m}{{K}^{-} 1 \cdot m o {l}^{-} 1} \times 293 \cdot K}{6.5 \cdot L}$
=??*atm.
You should check to make sure that all the dimensions in the expression cancel to give an answer in $a t m$. Does they?