1. Calculate the rate constant, k, and write the rate law expression for the catalyzed decomposition of hydrogen peroxide. Explain how you determined the order of the reaction for H2O2 and KI. Calculate and use the molarity of both the H2O2 and KI based on the combined volume.

im confused on how to do this please help!

here is the procedure we did

Decomposition of Hydrogen Peroxide (adapted from Advanced Chemistry with Vernier, 2nd edition, by Jack Randall) The decomposition of hydrogen peroxide in aqueous solution proceeds very slowly. A bottle of 3% hydrogen peroxide sitting on a grocery shelf is stable for a long period of time. The decomposition takes place according to the reaction below. 2H2O2(aq)2H2O+O2(g) A number of catalysts can be used to speed up this reaction, including potassium iodide. If you conduct the catalyzed decomposition of hydrogen peroxide in a closed vessel, you will be able to determine the reaction rate as a function of the pressure increase in the vessel that is caused by the production of oxygen gas. If you vary the initial molar concentration of the H2O2 solution, the rate law for the reaction can also be determined. Finally, by conducting the reaction at different temperatures, the activation energy, Ea, can be calculated. Fit Equation: Linear Coefficients: y=mx+b m 1.5283 b 100.59 Correlation: 0.96107 RMSE: 0.26471 Curve Fit Cancel OK Part I - Decompose 3%H2O2 solution with 0.5MKI solution at 20C 1. Connect the gas pressure sensor and the temperature probe to a LabQuest2. 2. In the 1L beaker, set up a water bath with room temperature water (20C). Be sure to record the temperature. 3. Measure out 4mL of 3%H2O2 solution into the larger test tube. Seal the test tube with a rubber stopper and place the test tube in the water bath. 4. Measure out 1mL of 0.5MKI solution into the smaller test tube and seal with a stopper. Immerse this into the water bath. 5. Allow both solutions to equilibrate in the water bath for at least 2 minutes before continuing. 6. Connect the one-hole stopper to the gas pressure sensor using the plastic tubing. 7. Set up the LabQuest to obtain data (collect data for 3 minutes, taking data points every 5 seconds)