In the Dumas method, 0.28 g of a compound gave 60 mL of N₂ at STP. If the compound contains only C, H, and N, what is th
Mass of N = (28/22400) × 60 = 0.075 g. Percentage = (0.075/0.28) × 100 = 26.79% ≈ 27%.
Ref: NCERT Class 11 Chemistry > Chapter 8: Organic Chemistry - Some Basic Principles and Techniques > Topic: Qualitative and Quantitative Analysis - Lassaigne Test and Estimation
