10. A multi-step reaction involving hydrogen peroxide and iodine anion is thought to have the following steps: Step 1: H2O2 + I^- → H2OH + IO^- Step 2: H2O2 + IO^- → H2O + O2 + I^- Write out the rate law for each fundamental step and determine the molecularity for each step. Identify the catalyst and intermediate of reaction.

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. an industrial chemist studying this reaction fills a 25.0l tank with 4.5 mol of sulfur dioxide gas and 4.5 mol of oxygen gas at 30.°c. he then raises the temperature, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.4 mol. calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. round your answer to 2 significant digits.