Question #db008

1 Answer
Apr 19, 2016


4.37 moles. The molar ratio is 1:1, so with unlimited Bromine you would produce the same number of moles of bromine as chlorine.


This question really was not stated very well. I am assuming that what was meant was the reaction of chlorine with bromide to form bromine by a redox reaction.

#Cl_2 + 2Br^- → 2Cl^- + Br_2#

Using Avogadro's number we calculate the number of moles of chlorine as #2.63 x 10^24# molecules# / 6.022 x 10^23# molecules/mole = #0.437 x 10^1 #or 4.37 moles.

Chlorine, bromine and iodine
In each case, a halogen higher in the Group can oxidise the ions of one lower down. For example, chlorine can oxidise the bromide ions (in, for example, potassium bromide solution) to bromine:
#Cl_2 + 2Br^- → 2Cl^- + Br_2# Bromine can only oxidise iodide ions to iodine. It isn't a strong enough oxidising agent to convert chloride ions into chlorine.