Data interpretation help for inorganic chemistry! I am doing a kinetics of Aquat

Question

Data interpretation help for inorganic chemistry!

I am doing a kinetics of Aquation experiment where [Co(NH3)5Cl]2+ gets turned into [Co(NH3)5H2O]3+ by adding concentration of nitric acid. I have two flasks, one contains 0.1 M of nitric acid and the other contains 0.3 M of nitric acid. I have solved for my "n" using this formula given:

and I found my n to be 0.326. Now I don't know what this 0.326 is suppose to mean and whether it means the reaction is acid catalyzed or not. Any interpretation would be greatly appreciated. Thanks for your time. I wll rate and comment on your answer so your effort is not wasted.

@0.3 M HNO,X(0.3) log3| kobs @0.3 M HNO, Kobs @0.1 M HNO, | simplified 2) ls rn acid catalyzed? Calculate: K(0.13" - MHN03 at same temp obs 0.3 M HNO kobs @0.1 M HNO3 1 Note limiting cases: if n = 0 (ie, zeroth order in acid) Kobs @0.3 M HNO Kobs @O.1 M HNO3 if n = 1 (ie, first order in acid)

Explanation / Answer

The transition metal complex contains an inert ligand ammonia, so the acid hydrolysis is slower. However when you are increasing the strength of the acid, it decreases the metal-ligand bond strength to a certain extent thereby displacing the ligand. The number n probably represents the relative speed of the reaction in the two different acidic strength medium. However you will get better results if you carry out a base catalysed reaction which will follow SN1cb mechanism. This might be the probable answer to your query.

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