develop a procedure for measuring Hdec for the decomposition of aqueous hydrogen peroxide. The decomposition reaction is catalyzed by aqueous iron(III) nitrate; plan the reaction so that 1 mole of iron(III) cations are present for every 10 moles of hydrogen peroxide. Keep the total volume of your reaction to 100 mL or less and do not use more than 10 mL of iron(III) solution. Describe all of the measurements you will make and show how you will use your measurements to calculate Hdec.