Finding the Concentration of Triiodide

[maknott]

Homework Statement

Stupid question but I'm not sure about it.

In lab we added I3- and KI into a test tube and from this we have find the concentration of I3- in the final volume.

The Attempt at a Solution

Would the I3- be diluted by the KI that was added or does the KI end up forming i3- once in solution? I know that I- will form I3- if I₂ is present but what about if just I3- is present. Originally I just calculated the concentration assuming the I3- would be diluted by the volume of KI but my professor said that was not correct...

Any help would be really appreciated.

 

[Greg Bernhardt]

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