Polyprotic acids contain more than one dissociable proton Each dissociation step has its own acid-dissociation constant,

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Polyprotic Acids Contain More Than One Dissociable Proton Each Dissociation Step Has Its Own Acid Dissociation Constant 1 (28.37 KiB) Viewed 17 times

Polyprotic acids contain more than one dissociable proton Each dissociation step has its own acid-dissociation constant, Kat, Kat. etc For example, a diprotic acid H₂A reacts as follows H_A(aq) + H2O(1) gut H₂O+ (aq) + HA (aq) Kat H₂O|HA| H₂A HA (aq) + H₂O(1) H₂O* (aq) + A² (aq) K₁2= [H₂O'||A²] НА in general, Kaa A2-1 for a solution of a weak diprobic acid because H₂O HA Submil Correct The fact that the initial acid concentration was not a thousand times bigger than the acd-dissociation constar quadratic equation. Now that we know the value of ar (0 083 M), we can verify that [H₂O] is more than 5 pr not negligible compared to 0.20 M Part B Previous Answers Calculate the equilibrium concentration of C₂0, in a 0.20 M solution of oxalic acid Express your answer to two significant figures and include the appropriate units View Available Hint(s) Submit НА (C₂0,2-1 Value Bart C. Complete previous partial Units ?