Chemistry · 2022
JEE Main · 28 July 2022, Shift 2 · Q56
A sample of 0.125g of an organic compound when analyzed by Duma's method yields 22.78 mL of nitrogen gas collected over KOH solution at 280 K and 759…
A sample of 0.125g of an organic compound when analyzed by Duma's method yields $\displaystyle 22.78$ mL of nitrogen gas collected over KOH solution at $\displaystyle 280$ K and $\displaystyle 759$ mm Hg . The percentage of nitrogen in the given organic compound is
\_\_\_\_. (Nearest integer)
Given :
(a)
The vapour pressure of water of $\displaystyle 280$ K is $\displaystyle 14.2$ mm Hg .
(b)
$\displaystyle \mathrm{R}=0.082 \mathrm{~L} \mathrm{~atm} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$
Official answer
22
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