Q < ksp unsaturated (no solid present) Q = ksp saturated (system is at equilibrium) Arrhenius definition: an acid produces h3o+ ions in water a base produces oh- ions in water. Bronsted-lowry definition: an acid is a proton donor a base is a proton acceptor. Lewis definition: an acid is an electron acceptor a base is an electron donor: amines behave as bases, metal cations act as acids, oxides act as acids weak acid/base equilibrium: 2- if both the cation/anion of a salt may affect ph or for an amphiprotic anion: effect of structure/bonding on weak acid strength: Weaker weak acids: smaller ka (larger pka, less stable conjugate base stronger weak acids, larger ka (smaller pka, more stable conjugate base stability of conjugate bases: Resonance: if the base has resonance then it is more stable stronger weak acid, the more resonance structures the better.
