The Student Room Group

F325 chem questions...plz help

I'm doing a question on combining two half equations to form an overall cell reaction, which I did successfully. In the previous reaction Fe2+ ions catalyse the reaction with I- and thiosulfate ions. In part b of the question, the questions says why iodide and thiosulfate ions can also be catalysed by fe3+ ions?

the answer being :

Fe3+ could react with I– ions first

I don't understand- only worth one mark. just want to understand
Sorry you've not had any responses about this. :frown:

Why not try posting in a specific subject forum- you might have more luck there.

Here's a link to our subject forum which should help get you more responses. :redface:

:h:

Quick Reply