In Duma’s method of estimation of nitrogen, $$0.1840g$$ of an organic compound gave $$30mL$$ of nitrogen collected at $$287$$ K and $$758mm$$ of Hg pressure. The percentage composition of nitrogen in the compound is $$______________$$ $$($$ round off to the Nearest $$Integer)$$ [given Aqueous tension at $$287$$ K $$=$$ $$14$$ mm of Hg]

Question

In Duma’s method of estimation of nitrogen, $$0.1840g$$ of an organic compound gave $$30mL$$ of nitrogen collected at $$287$$ K and $$758mm$$ of Hg pressure. The percentage composition of nitrogen in the compound is $$______________$$ $$($$ round off to the Nearest $$Integer)$$ [given Aqueous tension at $$287$$ K $$=$$ $$14$$ mm of  Hg]

Infinity Learn · Accepted Answer

Given conditions                     S.T.P $$conditionsP1=758-14mm$$  $$=744mm$$ of Hg             $$P2=760mm$$ of $$HgV1=30m$$ℓ                          $$V2=$$?$$T1=287k$$                         $$T2=273k$$∴$$V2=P1V1T1$$×$$T2P2=744$$×$$30$$×$$273287$$×$$760=27.935ml$$%$$N=18$$×$$VN2(m$$ℓ$$)W0$$⋅$$C=18$$×$$27.9350.1840$$ $$=18.97$$ $$=19$$

In Duma’s method of estimation of nitrogen, 0.1840g of an organic compound gave 30mL of nitrogen collected at 287 K and 758mm of Hg pressure. The percentage composition of nitrogen in the compound is ______________ ( round off to the Nearest Integer) [given Aqueous tension at 287 K = 14 mm of Hg]

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