Question

In Kjeldahl's estimation, the ammonia gas evolved
from 1.61 g of organic substance was passed into
125 ml. of M/2 H2SO. The residual acid was diluted
to 1000 ml with distilled water. 25 ml of this diluted
acid required 25.5 ml of M/10 NaoH for complete
neutralisation. Calculate the percentage of nitrogen in
the organic substance.

Answer 1

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