Suppose a student diluted and titrated a bleach unknown exactly as described in the experimental procedure, except only a single titration was performed which required 16.22 mL of 0.100 M Na2S2O3. The density of the original, undiluted bleach unknown was g/mL.

If the number of moles of Na2S2O3 is .00162, what is the number of moles for CIO-

Do you have an equation for this. Are you sure you didn't go through an extra step with iodide ion?