CHEM 1111 Chapter 9: Chapter 9 - Chemical Reactions in Aqueous Solutions
Document Summary
Electrolyte: substance that dissolves in water to yield a solution that conducts electricity. In bodily fluids, they are necessary for the transmission of electrical impulses. Dissociation: process by which an ionic compound, when dissolved, breaks into its constituent ions; the presence of ions in water allow it to conduct electricity. Ionic compounds form aqueous solutions when dissolved, but most molecular compounds do not because they don"t dissociate. Ionization: the process by which a molecular compound forms ions when it dissolves; allows some molecular compounds to be electrolytes (ex. Acids: one important class of molecular compounds that are electrolytes. Molecular bases: the other one; a base dissolves in water to produce oh- ions. Strong electrolyte: dissociates completely; all water soluble ionic compounds (because they dissociate completely); seven strong acids (table 9. 1) When strong acid ionizes fully, solution contains h+ ions & no acid molecules. Weak electrolytes: most of the molecular compounds that are electrolytes (except for strong acids)
