JEE Main202224 Jun 2022Evening ShiftChemistryGeneral Organic ChemistryActual
0 . 2   g of an organic compound was subjected to estimation of nitrogen by Dumas method in which volume of N 2 evolved (at STP) was found to be 22 . 400   mL . The percentage of nitrogen in the compound is - [nearest integer] (Given: Molar mass of N 2 is 28   g   mol - 1 , Molar volume of N 2 at STP : 22 . 4   L )
Correct answer
0
Step-by-step solution
Volume of N 2 gas is equal to 22.4 ml at STP Mole of N 2 gas = 22 . 4 22400 = 1 1000 Weight of N 2 gas = 1 1000 X   28 % of N in organic compound = 28 1000 X   100 0 . 2 = 14 % Hence, The percentage of nitrogen in the compound is 14%