In Dumas' method for estimation of nitrogen 1 g of an organic compound gave 150 mL of nitrogen collected at 300 K temperature and 900 mm Hg pressure. The percentage composition of nitrogen in the compound is _____ $\%$ (nearest integer).
(Aqueous tension at $300 \mathrm{~K}=15 \mathrm{~mm} \mathrm{Hg}$ )

Question

In Dumas' method for estimation of nitrogen 1 g of an organic compound gave 150 mL of nitrogen collected at 300 K temperature and 900 mm Hg pressure. The percentage composition of nitrogen in the compound is _____

\%

(nearest integer).
(Aqueous tension at

300 \mathrm{~K}=15 \mathrm{~mm} \mathrm{Hg}

)

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Correct answer: 0

Partial pressure of N_2=(900-15)=885 ~mm Hg Mole of N_2=(((885)/(760) × 0.15))/((0.0821 × 300))=0.0071 Moles \% of nitrogen in organic compound aligned & =((0.0071 × 28))/(1) × 10 & =19.85 \% aligned

In Dumas' method for estimation of nitrogen 1 g of an organic...

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