We completed a redox titration of Iodine (25cm3)
(formed from 1M Potassium Iodide (KI), 0.1M Potassium Iodate (KIO3
) and excess Hydrochloric acid (KCl)
against Sodium thiosufate (Nas2
It took 25.8cm3
of 0.1 M Nas2
to get rid of the formed Iodine.
The question asks:
Use the equation below to calculate the amount of iodide ions that reacts with each mole of iodate ions in aqueous solution
2I- (aq) + S4
and determine the concentration of iodide ions in moldm-3
I am not sure what this is asking me! Do I need to calculate how the Iodine is originally formed?
I am really stuck on this one! Please help.