0.2g of an organic compound was subjected to estimation of nitrogen by Dumas method in which volume of N₂ evolved (at STP) was found to be 22.400 mL. The percentage of nitrogen in the compound is __________. [nearest integer]

(Given : Molar mass of N₂  is 28g mol^-1, Molar volume of N₂ at STP : 22.4L)

<p>Number of moles of gas =&nbsp;<math><mrow><mfrac><mrow><mn>2</mn><mn>2</mn><mo>.</mo><mn>4</mn></mrow><mrow><mn>2</mn><mn>2</mn><mn>4</mn><mn>0</mn><mn>0</mn></mrow></mfrac><mo>=</mo><mfrac><mrow><mn>1</mn></mrow><mrow><mn>1</mn><mn>0</mn><mn>0</mn><mn>0</mn></mrow></mfrac><mi>m</mi><mi>o</mi><mi>l</mi><mi>e</mi><mi>s</mi></mrow></math></p><p>Mass of nitrogen =&nbsp;<math><mrow><mrow><mo> (</mo><mrow><mfrac><mrow><mn>1</mn></mrow><mrow><mn>1</mn><mn>0</mn><mn>0</mn><mn>0</mn></mrow></mfrac><mo>×</mo><mn>2</mn><mn>8</mn></mrow><mo>)</mo></mrow><mi>g</mi><mi>m</mi></mrow></math></p><p>% of N in organic compound =&nbsp;<math><mrow><mfrac><mrow><mrow><mo> (</mo><mrow><mfrac><mrow><mn>2</mn><mn>8</mn></mrow><mrow><mn>1</mn><mn>0</mn><mn>0</mn><mn>0</mn></mrow></mfrac></mrow><mo>)</mo></mrow></mrow><mrow><mn>0</mn><mo>.</mo><mn>2</mn></mrow></mfrac><mo>×</mo><mn>1</mn><mn>0</mn><mn>0</mn><mn>%</mn><mo>=</mo><mn>1</mn><mn>4</mn><mn>%</mn></mrow></math></p>

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