Bromine is obtained from the sodium bromide dissolved in sea water by:
I passing chlorine into sea water at pH 3.5
II blowing out the bromine with air and absorbing it in aqueous sodium carbonate
III acidifying the solution and distilling out the bromine.
(i) Write an equation for step I.
(ii) Step II produces a solution of sodium bromate(V), NaBrO3 in the molar ratio 1:5.
Construct an equation for the formation of the bromine in step III.
The Attempt at a Solution
(i) Cl2 + NaBr ----> NaCl + Br2
(ii) i have no idea how to interpret the information provided in this part. how can the mole ratio help me?