Question

A sample of milk weighing 0.47%9m is digested
with sulfuric acid and cataly at that converts
milk protein into Ammonium salt in the
Hegeldahl's method. Ammonia is absorbed into
0.05 N 25mt Hel. The remaining acid required
13.12 mi 0.08 N Nach for titzation calculate
the ). of Nitrogen​

Answer 1

Answer:

Kjeldahl presented to the Danish Chemical Society a method (much ... containing ammonium salts, nitrate, or organic nitrogen compounds. ... the sample is first digested in strong sulfuric acid in the presence of a catalyst, ... the ammonium ions are then converted into ammonia gas, heated and ... CP = %N x 6.25.Kjeldahl method using concentrated boric acid is a common practice in many ... in order to reduce the amount of acid fumes and also require less acid and catalyst mixture. ... Titration of ammonia absorbed in H3BO3 solution was proposed first by ... (i.e., 0.05 M of ammonium chloride at the end point), methyl red

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