### Calculating Initial Concentrations
**Step 1:** Calculate the initial concentration of \([KIO_3]\) right after mixing.
- For the first trial (10.0 mL of 0.06 M \(KIO_3\), 15.0 mL water, 5.0 mL \(NaHSO_3\)):
\[
\text{Initial concentration of } [KIO_3] =
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