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Unit 9: Solutions
Term | Definition |
---|---|
soluble | capable of dissolving in a particular solvent |
solution | a homogeneous mixture of two or more substances uniformly dispersed throughout a single phase |
solvent | in a solution, the substance in which the solute dissolves |
solute | in a solution, the substance that dissolves in the solvent |
suspension | a mixture in which particles of a material are mire or less evenly dispersed throughout a liquid or gas |
colloids | a mixture consisting of tiny particles that are intermediate in size between those in solutions and those in suspensions and that are suspended in a liquid,solid , or gas |
tyndall effect | it occurs when light is scattered by colloidal particles dispersed in a transparent medium |
electrolyte | a substance that dissolves in water to give a solution that conducts an electric current |
nonelectrolyte | a substance that dissolves in water to give a solution that does not conduct an electric current |
solution equilibrium | the physical state in which the opposing processes of dissolution and crystallization of a solute occur at equal rates |
saturated solution | a solution that cannot dissolve any more solute under the givwn |
unsaturated solution | a solution that contains less solute than a saturated solution does and that is able to dissolve additional solute |
supersaturated solution | a solution that holds more dissolved solute than is required to reach equilibrium at a given temperature |
solubility | the ability of one substance to dissolve in another at a given temperature and pressure |
hydration | the strong affinity of water molecules for particles of dissolved or suspended substances that causes electrolytic dissociation |
immiscible | describes two or more liquids that do not mix with each other |
miscible | describe two or more liquids that can dissolve into each other in various proportions |
Henry's law | the law that states that at constant temperature, the solubility of a gas in a liquid is directly proportional |
effervescence | a bubbling of a liquid cause by the rapid escape of gas rather than by boiling |
enthalpy of a solution | the amount of energy released or absorbed as heat when a specific amount of solute dissolves in a solvent |
concentration | the amount of a particular substance in a given quantity of a mixture,solution, or ore |
molarity | a concentration unit of a solution expressed as moles of solute dissolved per liter of solution |
molality | the concentration of a solution expressed in moles of solute per kilogram of solvent |