Question

The volume occupied by $9.0g$ of nitrogen gas at $300K$ and $750mmHg$ pressure is:

• A. 5.854
• B. 6.7432
• C. 8.8462
• D. 8.0125

Answer 1

Answer: (D)

$PV=\frac{w}{M}RT$
Let $V$ be the volume occupied
$P=750mm=\frac{750}{760}$ atm
$V=?$
$w=9g,T=300K$
$V=\frac{wRT}{MP}$
$=\frac{9\times 0.082\times 300\times 760}{28\times 750}$
$=8.0125L$