Question

In carius method of estimation of halogen , 0.30g of an organic compound gave 0.24g of agbr .Find out the percentage of bromine in the compound

Answer 1

Mass of an organic compound = m = 0.30 g

Mass of Silver bromide = 0.24 g

Molar mass of silver bromide = 188 g

188 g of silver bromide contains bromide = 80 / 188

0.24 g of silver bromide = 80 / 188 x 0.24

= 0.102 g

%age of Bromine = 0.102 / 0.30 x 100 = 34 %