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  4. 1.2 g of organic compound on Kjeldahlization liberates ammonia which consumes 30 cm3 of 1 N HCl. The percentage of nitrogen in the organic compound is

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Q. $1.2\,g$ of organic compound on Kjeldahlization liberates ammonia which consumes $30 \, cm^3$ of $1 \, N\, HCl$. The percentage of nitrogen in the organic compound is

KCETKCET 2011Organic Chemistry – Some Basic Principles and Techniques

Solution:

Percentage of nitrogen $=\frac{1.4 \times N \text { of acid } \times \text { Vol. used with } NH _{3}}{\text { Weight of organic compound }}$

$=\frac{1.4 \times 1 \times 30}{1.2}$

$=35$