question_answer 23)

In Carius method of estimation of halogen, 0.15 g of an organic compound gave 0.12 g of\[AgBr\]. Find out the percentage of bromine in the compound.

Answer:

Mass of organic compound, W = 0.15 g Mass of\[AgBr\], \[{{W}_{1}}=0.12g\] \[\underset{188g}{\mathop{AgBr}}\,\equiv \underset{80g}{\mathop{Br}}\,\] Percentage of bromine = \[\frac{80\times {{W}_{1}}}{188\times W}\times 100\] \[=\frac{80\times 0.12\times 100}{188\times 0.15}=34.04%\]