Question No.5 In Dumas method for estimation of nitrogen 0.30 gof an organic compound gave 50 ml of nitrogencollected at 300 K and 715 mm of Hg pressure.The percentage composition of nitrogen in thecompound is, if aqueous tension at 300 K is 15 mmof Hg.

Question No.5 In Dumas method for estimation of nitrogen 0.30 gof an

1.	Question No.5 In Dumas method for estimation of nitrogen 0.30 gof an organic compound gave 50 ml of nitrogencollected at 300 K and 715 mm of Hg pressure.The percentage composition of nitrogen in thecompound is, if aqueous tension at 300 K is 15 mmof Hg.
Answer» 6.25 %Explanation:Here, Mass of organic substance =0.3 gVolume of Nitrogen collected =50 mLTemperature (T1)=300 KVapour pressure of water =15 mmActual pressure of dry nitrogen =715−15=700 mmAt STP, we know that P2=760 mm and T2 =273K then V2 =?====> P1 V1/ T1 = P2V2/ T2====>( 700 x 50) /309 = (700 x V2)/273====> V2 = 41.9 mlHence, % if Nitrogen = (28 x 41.9 x 100)/22400= 5.238 =6.25%(nearly)HOPE THIS HELPS YOU¶ THANK YOU ¶PLEASE MARK AS BRAINLIEST ™ ®