| A | B |
| acid | a compound that produces hydrogen ions in solution, is a hydrogen-ion donor |
| acid dissociation constant | the ratio of the concentration of the dissociated form of an acid to the undissociated form;stronger acids have larger Ka values that weaker |
| acidic solution | any solution in which the hydrogen-ion concentration is greater than the hydroxide-ion concentration |
| alkaline solution | a basic solution |
| amphoteric | a substance that can act as both an acid and a base |
| base | a compound that produces hydroxide ions in solution, is a hydrogen-ion acceptor |
| base dissociation constant (Kb) | the ratio of the concentration of the dissociated form of a base to the undissociated form |
| basic solution | any solution in which the hydroxide-ion concentration is greater than the hydrogen-ion concentration |
| conjugate acid | the particle formed when a base gains a hydrogen ion |
| conjugate acid-base pair | two substances that are related by the loss or gain of a single hydrogen ion |
| conjugate base | the particle that remains when an acid has donated a hydrogen ion |
| diprotic acid | any acid that contains two ionizable protons (hydrogen ions) |
| hydrogen ion acceptor | a base, according to the Bronsted-Lowry Theory |
| hydrogen ion donor | an acid, according to the Bronsted-Lowry Theory |
| hydronium ion | the positive ion formed when a water molecule gains a hydrogen ion; all hydrogen ions in aqueous solution are present as hydronium ions |
| ion-product consant for water (Kw) | the product of the hydrogen ion and hydroxide ions concentrations in water; it is 1x10-14 at 25 C |
| monoprotic acid | any acid that contains one ionizable proton (hydrogen ion) |
| neutral solution | an aqueous solution in which the concentrations of hydrogen and hydroxide ions are equal, that is, 1.0 x 10-7 mol/L; it has a pH of 7.0 |
| pH | a number used to denote the hydrogen-ion concentration, or acidity, of a solution;it is the negative logarithm of the hydrogen-ion concentration of a solution |
| self-ionization | a term describing the reaction in which two water molecules react to produce ions |
| strong acid | an acid that is completely (or almost completely) ionized in aqueous solution |
| strong base | a base that completely dissociates into metal ions and hydroxide ions in aqueous solution |
| triprotic acid | any acid that contains three ionizable protons (hydrogen ions) |
| weak acid | an acid that is only slightly ionized in aqueous solution |
| weak base | a base that does not dissociate completely in aqueous solution |