Consider the following mechanism for the reaction of hydrogen and iodine monochloride: Step 1. H21g2 + ICl1g2S HI1g2 + HCl1g2 Step 2. HI1g2 + ICl1g2S I21g2 + HCl1g2 (b) Identify any reaction intermediates.

Video transcript

Hello. In this problem, we are told the decomposition of hydrogen peroxide is catalyzed by platinum and involves the following steps were asked to determine then the reaction intermediate. So we can combine these two steps to find the overall reaction. The overall reaction then, if they appear on both the reactant and product side, they cancel. So we have platinum on the reacting side and platinum on the product side to those cancel. And then we have platinum combined with oxygen on the reactant and product side to those cancel. So then the overall reaction is two moles of hydrogen peroxide decomposing to form oxygen And two moles of water. So a intermediate is formed in one step and then consumed in a subsequent step and does not appear in the overall reaction. So if we look at what we marked off, don't appear in the overall reaction. And we see that the platinum bind with oxygen here is formed in this first step and then it is consumed in the second step. And it does not appear in our overall reaction. See then is our intermediate. Again, an intermediate is formed in one step and consumed in a subsequent step and does not appear in our overall reaction. And so in this case it is then the platinum that is combined with the oxygen. Thanks for watching. Hope this helps