Q.

In the estimation of bromine, 0.5 g of an organic compound gave 0.40 g of silver bromide. The percentage of bromine in the given compound is_______% (nearest integer)

(Relative atomic masses of Ag and Br are 108 u and 80 u, respectively).

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answer is 34.

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Detailed Solution

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 O.C 0.5 gAgBr0.4 g
mol of Br = mol of AgBr=0.4188
%Br=%Br=0.4188×800.5×100=34.04%

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In the estimation of bromine, 0.5 g of an organic compound gave 0.40 g of silver bromide. The percentage of bromine in the given compound is_______% (nearest integer)(Relative atomic masses of Ag and Br are 108 u and 80 u, respectively).