Consider the following reaction sequence in which \(J, K, L\) and \(M\) are the major products.
Given:
Atomic mass (in amu): H : \(1\), C : \(12\), N : \(14\), O : \(16\), S : \(32\), Br : \(80\), Ba : \(137\)
In sulphur estimation by Carius method, the amount of \(\text{BaSO}_4\) formed from \(3.79\,\text{g}\) of \(M\) is _____ g.
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In the Carius method, the organic compound is heated with fuming nitric acid in the presence of silver nitrate or barium chloride. For sulphur estimation, the sulphur is oxidized to sulfuric acid and then precipitated as barium sulfate. Use the stoichiometry 1 mole of $\text{S} \rightarrow 1$ mole of $\text{BaSO}_4$ for calculations.
