JEE Main 2022 Chemistry question
0.2 g of an organic compound was subjected to estimation of nitrogen by Duma's method in which volume of evolved (at STP) was found to be 22.400 mL. The percentage of nitrogen in the compound is . [nearest integer] (Given : Molar mass of is 28 g , Molar volume of at STP : 22.4L)
Answer: 14
Solution
The mass of evolved = g. The percentage of nitrogen = 100/0.2 = 14%.