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 $300 K = 15 mm Hg$ )

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 K = 15 mm Hg

)

Accepted Answer

Correct answer: 20. (20) Partial pressure of N_2=(900-15)=885 mmHg Mole of N_2= ( 885760 0.15) (0.0821 300 )=0.0071 moles \% of nitrogen in organic compound = (0.0071 28 )1 10 =19.85 \%

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

Solution

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