Question

Define Duma's and
Kjeldahl's method.​

Answer 1

The Kjeldahl method or Kjeldahl digestion (Danish pronunciation: [ˈkʰelˌtɛˀl]) in analytical chemistry is a method for the quantitative determination of nitrogen contained in organic substances plus the nitrogen contained in the inorganic compounds ammonia and ammonium (NH3/NH4+).

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Answer 2

Answer:

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Explanation:

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Define Duma's and Kjeldahl's method.

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Kjeldahl's method.

The method consists of heating a sample at 360–410°C with concentrated sulfuric acid (H2SO4), which decomposes ("digests" or "destructs") the organic sample by oxidation to liberate the reduced nitrogen as ammonium sulfate.

Duma's method

The Dumas method in analytical chemistry is a method for the quantitative determination of nitrogen in chemical substances based on a method first described by Jean-Baptiste Dumas in 1826.

More to Know ⬇️

Jean-Baptiste Dumas devised a method of determining the molar mass of substances that can conveniently be turned into vapor. The Dumas method is still the subject of laboratory exercises in chemistry courses. It involves finding the mass, volume, temperature, and pressure of a substance in the vapor phase.

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