In Dumas method for estimation of nitrogen, 0.50 g of an organic compound gave 70 mL of nitrogen collected at 300 K and 715 mm pressure. The percentage of nitrogen in the organic compound is ______% (

Question

In Dumas method for estimation of nitrogen, 0.50 g of an organic compound gave 70 mL of nitrogen collected at 300 K and 715 mm pressure. The percentage of nitrogen in the organic compound is ______% (Aqueous tension at 300 K is 15 mm).

Prashant Kotian · Accepted Answer

Correct answer: .. N P (715 15)mm atm    N V 70ml l   N 70 PV 1000 n RT 0.0821 300              N 700 W 760 0.0821 300     % N = N 70 /1000 W 0.0821 300 100 0.5 0.5       = 14.65% 15

💡 Solution & Explanation

Practice 22,000+ questions like this