Distribution diagrams of polyprotic acids

Distribution diagrams of polyprotic acids is a small, simple, easy to use application specially designed to enable you to calculate the distribution of the dissociated ions of mono-, di-, tri-, and tetra-protic acids. The user can set the pKa values of the protonated species and immediately sees the distribution of the ions in dependence of the pH value.
Polyprotic acids are able to donate more than one proton per acid molecule, in contrast to monoprotic acids which donate only one proton per molecule. Polyprotic acids can undergo multiple dissociations depending on the pH value. Each dissociation has its own dissociation constant.