Modern Chemistry Ch 13
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23 terms
Terms | Definitions |
|---|---|
 Soluble | Capable of being dissolved. |
| Solution | A homogeneous mixture of two or more substances in a single phase. |
| Solvent | The dissolving medium in a solution. |
| Solute | The substance dissolved in a solution. |
| Suspension | The name of the mixture where the particles in a solvent are so large that they settle out unless that mixture is constantly stirred or agitated. |
| Colloids or Colloidal Dispersions | Particles that are intermediate in size between those in solutions and suspensions form mixtures. |
| Electrolyte | A substance that dissolves in water to give a solution that conducts electric current. |
| Nonelectrolyte | A substance that dissolves in water to give a solution that does not conduct an electric current. |
| Solution Equilibrium | Is the physical state in which the opposing processes of dissolution and crystallization of a solute occur at equal rates. |
| Saturated Solution | A solution that contains the maximum amount of dissolved solute. |
| Unsaturated Solution | A solution that contains less solute that a saturated solution under the existing conditions. |
| Supersaturated Solution | Is a solution that contains more dissolved solute than a saturated solution contains under the same conditions. |
| Immiscible | The name given to liquid solutes and solvents that are not soluble in each other. |
| Miscible | The name given to liquids that dissolve freely in one another in any proportion. |
| Henry's Law | The solubility of a gas in a liquid is directly proportional to the partial pressure of that gas on the surface of the liquid. |
| Effervescence | The rapid escape of a gas from a liquid in which it is dissolved. |
| Solvated | A solute particle that is surrounded by solvent molecules. |
| Heat of Solution | The net amount of heat energy absorbed or released when a specific amount of solute dissolves in a solvent. |
| Concentration | Is a measure of the amount of solute in a given amount of solvent or solution. |
| Molarity | Is the number of moles of a solute in one liter of solution. |
| Formula for Molarity: | Amount of Solute (mol) ____________________ Volume of Solution (L) |
| Molality | Is the concentration of a solution expressed in moles of solute per kilogram of solvent. |
| Formula for Molality: | Moles of Solute __________________ Mass of Solvent (kg) |
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