Polyprotic Acid Titration Curve Features

Polyprotic acid titration curves show how acids with more than one ionizable proton react with a strong base. Each proton is released in a separate step. Each step has its own dissociation constant, or Ka, and each later Ka is weaker than the one before it.

When a polyprotic acid such as sulfurou...

Polyprotic acids contain multiple ionizable protons, each dissociating differently, with each successive acid dissociation constant, being weaker than the previous one.

For instance, consider an example of sulfurous acid with two protons.

When titrated with a strong base like NaOH, the first proton is removed, generating a hydrogen...