What is the percentage of nitrogen in an organic compound 0.14 g of which gave by Dumas method 82.1 c.c. Of nitrogen collected over water at 27^(@)C and at a barometric pressure of 774.5 mm ? ("aqueous tension of water at" 27^(@)C"is"14.5 mm)

What is the percentage of nitrogen in an organic compound 0.14 g of wh

1.	What is the percentage of nitrogen in an organic compound 0.14 g of which gave by Dumas method 82.1 c.c. Of nitrogen collected over water at 27^(@)C and at a barometric pressure of 774.5 mm ? ("aqueous tension of water at" 27^(@)C"is"14.5 mm)
Answer» SOLUTION :`n_(N_(2))=(((774.5-14.5))/(760)xx(82.1)/(1000))/(0.081xx300)=3.3786xx10^(-3)` mole `m_(N_(2))=0.0946gm` `% N_(2)=(0.0946)/(0.14)xx100=66.7%`