1.

In the estimation of nitrogen by Kjeldahl's method, 2.8 gm of an organic compound required 20 millimole of H_(2)SO_(4) for the complete neutralization of NH_(3) gas evolved. The percentage of nitrogen in the sample is:

Answer»

0.2
0.1
0.4
0.3

Solution :Kjeldhars METHOD % `N=(1.4 xx "meq of" H_(2)SO_(4))/("mass of ORGANIC compound")=(1.4 xx 20 xx 2)/(2.8)=20%`


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