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Chemistry Unit 6
| Term | Definition |
|---|---|
| pH | hydrogen ion concentration |
| Titration | method used to determine the concentration of a substance in a solution |
| Dissociation | the separation of ions that occur when an ionic compound dissolves |
| Electrolyte | a substance that dissolves in water to give the solution the ability to conduct electricity |
| Base | proton acceptors identified by release of hydroxide ions |
| H3O+ | hydronium |
| Molarity | number of moles of solute in one liter of solution |
| Molality | the concentration of a solution expressed in moles of solute per kilogram of solvent |
| Colligative Properties | depend on the concentration of solute particles but not on their identity |
| Acid | proton donors that yield hydronium ions in water solution |
| Concentration | the amount of solute in a given amount of solvent in a solution |
| Boiling Point Elevation | the difference between the boiling points of the pure solvent and a nonelectrolyte solution of that solvent and is directly proportional to the molal concentration of the solution |
| Freezing Point Depression | the difference between the freezing points of the pure solvent and a solution of a non electrolyte in that solvent, and is directly proportional to the molal concentration of the solution |
| Kf | Molal Freezing Point constant |
| Kb | Molal Boiling Point constant |
| Buffer | solutions that are used as a means of keeping pH at a nearly constant value in a wide variety of chemical applications |
| Solubility | the capability to dissolve |
| End point | the point in a titration at which no more titrant should be added. It is determined, for example, by a color change in an indicator or by the appearance of a precipitate |
| Neutralization | a chemical reaction in which an acid and a base react to form a salt |
| pOH | hydroxide ion concentration |