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Ch.16 - Aqueous Equilibria: Acids & Bases

Chapter 16, Problem 44a

The following picture represents the hydrated metal cation M1H2O26 n + , where n = 1, 2, or 3.

(a) Write a balanced equation for the reaction of M1H2O26 n + with water and write the equilibrium equation for the reaction.

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Hey everyone shown below is the structure of the hydrated complex. Hexham. Aqua vanadium three ion were asked to provide the balance equation and the equilibrium expression for the reaction of Hexham aka vanadium three ion with water 1st. Let's go ahead and write out this reaction. So we have our Hexham aqua vanadium with a plus three charge and this is going to react with water. Now when these two react we end up with V H H with a plus two charge since our hex a aqua vanadium three ion donated a proton. And so we end up with that hydro ni um ion. So here are bronze, said larry acid, which is our proton donor again is a hex, a algo Vanadium three ion and our bronze said larry base which is our proton except er this is going to be our water. Now looking at this reaction, we see that everything is completely balanced out. So let's go ahead and write out our equilibrium expression and this is going to be the concentration of our products. So we have vanadium and we have five of our water and we have our hydroxide and we have a plus two charge. Next we also have the concentration of our hydro knee um ion and this is all going to be divided by our reacted which is going to be the concentration of our Hexham Aqua vanadium three ion and we do not add our water in here since it is a liquid and these are going to be our final answers. Now I hope that made sense. And let us know if you have any questions.