In Carius method for estimation of halogens 02 g of an organ

Question

In Carius method for estimation of halogens, 0.2 g of an organic compound gave 0.188 g of AgBr. The percentage of bromine in the compound is ______________. (Nearest integer)

[Atomic mass : Ag = 108, Br = 80]

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DivineJEE · Accepted Answer

n_(AgBr) = 0.188g / 188g/mol = 10^(-3) mol => n_(Br) = n_(AgBr) = 0.001 mol => mass_(Br) = (0.001 x 80) gm = 0.08 gm => mass% = 0.08 x 100 / 0.2 = 40\%

Explanation

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