In Dumas' method of estimation of nitrogen 0.35 g of an organic compound gave 55 mL of nitrogen collected at 300 K temperature and 715 mm pressure.…

In Dumas' method of estimation of nitrogen $\displaystyle 0.35$ g of an organic compound gave $\displaystyle 55$ mL of nitrogen collected at $\displaystyle 300$ K temperature and $\displaystyle 715$ mm pressure. The percentage composition of nitrogen in the compound would be : (Aqueous tension at $\displaystyle 300 \mathrm{~K}=15 \mathrm{~mm}$ )