York University

• CHEM 1001

• Please write your name, student number and your signature on every page of work you submit. The lab must be completed on this template (either printed/handwritten/scanned, or typed). If the report is typed, proper scientific syntax/notation is required (ex: 5.76 x 106 instead of 5.75*10^6) NOTE: This lab report must be an independently produced piece of work. Collaboration of any kind is not permitted and violates the Senate Policy on Academic Honesty. PART 1 1. Report the stock solution concentrations of iodate and bisulfite (from your personalized data). [IO3 - ] in stock solution [HSO3 - ] in stock solution 0.021 0.002 2. Complete the following tables for your experimental runs to determine the reaction order with respect to IO3 - . The time you report is the time taken for the solution to turn blue. The concentration of iodate is its initial concentration after the two starting solutions are mixed. Run NaHSO3 (mL) KIO3 (mL) H2O (mL) Initial [IO3 - ] (mol L-1 ) Time (s) 1 10.00 5.00 5.00 0.00525 59.5 2 10.00 7.50 2.50 0.00788 44.6 3 10.00 10.00 0 0.0105 29.4 3. What is the concentration of HSO3 - (mol L-1 ) consumed in all three runs? Show your work. Input the value into the first column in the table on the next page (same for all three runs)