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Ionic Salts and Their Characteristic

In Kjeldahl's...

Question

In Kjeldahl's method, ammonia from $5$ g of substrance neutralise $30 c m^{3}$ of $0.1 N$ acid. The percentage of nitrogen in the substrance is:

A

8.4

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B

1.68

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C

0.84

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D

0.168

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Solution

The correct option is C $0.84$
% Nitrogen $= \frac{1.4 \times N_{1} \times V}{W} = \frac{1.4 \times 0.1 \times 30}{5} = 0.84 %$

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