AIPMT | 2015Nitrogen Containing CompoundHard
Question
In Duma′s 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 :-
Options
A.18.20
B.16.76
C.15.76
D.17.36
Solution
Volume of nitrogen collected at 300 K and 725 mm pressure is 40 mL actual pressure
= 725 - 25 = 700 mm
Volume of nitrogen at STP
= 33.52mL
22,400 mL of N2 at STP weight = 28 g
33.5 mL of nitrogen weight =
Percentage of nitrogen
= 16.76%
= 725 - 25 = 700 mm
Volume of nitrogen at STP
= 33.52mL22,400 mL of N2 at STP weight = 28 g
33.5 mL of nitrogen weight =
Percentage of nitrogen
= 16.76%Create a free account to view solution
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