Chemistry practical - Peroxydisulfate ions and iodide ions, papers needed

[Amy Bloom]

Anyone has done Cambridge AS level practicals on peroxydisulfate ions and iodide ions, i don't remember if it included a titration or was it a rate experiment. If yes, which year the paper was?

Anyone has done this paper: June 2012 P31. If yes, can you give me your values for question 1?

Thanks in advance.