question_answer2) In Dumas method of estimation of nitrogen 0.35 g of an organic compound gave 55 mL of nitrogen collected at 300 K temperature and 715 mm pressure. The percentage composition of nitrogen in the compound would be (Aqueous tension at \[300\text{ }K=15\text{ }mm\]) [AIPMT (S) 2011]
question_answer4) In the Kjeldahls method for estimation of nitrogen present in a soil sample, ammonia evolved from 0.75 g of sample neutralised 10mL of 1 M \[{{H}_{2}}S{{O}_{4}}\]. The percentage of nitrogen in the soil is [AIPMT 2014]
question_answer5) In Dumas method for estimation of nitrogen, 0.25 g of an organic compound gave 40 mL of nitrogen collected at 300 K temperature and 725 mm pressure. If the aqueous tension at 300 K is 25 mm, the percentage of nitrogen in the compound is [NEET 2015 (C)]