#purification

Kjeldahl percentage nitrogen comes out half of the key, and why does Dumas work for nitro compounds but Kjeldahl doesn't?

bhai raat ke 1 baj rahe hain aur mera numerical nahi ban raha, so asking here. Question I was solving: 0.5 g of an organic compound was Kjeldahl digested, ammonia evolved was passed into 15 mL of 0.1 M H 2SO 4 , and the