when determining the concentration of Fe2 ions in a tablet using a redox titration, what other factors might influence the reduction and oxidation reactions taking place

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .

10 years is the answer

the answer is symmetrical : )