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Nitrogen

0.5g of an or...

Question

$0.5 g$ of an organic compound containing nitrogen on kjeldahlising required $29 m l$ of $N / 5 H_{2} S O_{4}$ for complete neutralisation of ammonia. The percentage of nitrogen in the compound is :

34.3

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16.2

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13.6

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24.5

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Solution

The correct option is B $16.2$
$m e q o f a c i d = 29 \times \frac{1}{5} = 5.8$

meq of acid = 5.8

$% o f N = 1.4 \times \frac{m e q o f A c i d u s e d}{w e i g h t o f c o m p o u n d}$

$= 1.4 \times \frac{5.8}{0.5}$

$= 16.24 %$

Option B is correct.

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