For 10 points, identify these substances exemplified by phosphoric acid and sulfuric acid.
Mathias Ullmann, not of condensation fame, developed the decoupled sites representation to calculate characteristic constants for sites on these chemicals when they are considered as non-interacting quasisites. Borkovec and Koper used the Ising model to develop a parameterization to calculate certain microscopic constants associated with these chemicals; those microscopic constants describe the individual equilibria of all species in these chemicals. The difference between the macroscopic forms of those constants for these chemicals must be large for calculating those constants via the (*) Henderson-Hasselbalch equation. These chemicals have several equivalence points on a titration curve since they are able to donate multiple hydrogens in solution. For 10 points, identify these substances exemplified by phosphoric acid and sulfuric acid.
Mathias Ullmann, not of condensation fame, developed the decoupled sites representation to calculate characteristic constants for sites on these chemicals when they are considered as non-interacting quasisites.
{polyprotic acids} [prompt on {acids}; accept {polybasic acids}]