AP Chem Chapter 11 Terms
Terms : Hide Images [1]
| 305773126 | molarity | moles of solute per volume of solution in liters | |
| 305773127 | mass percent | the percent by mass of a component of a mixture or of a given element in a compound | |
| 305773128 | mole fraction | the ratio of the number of moles of a given component in a mixture to the total number of moles in the mixture | |
| 305773129 | molality | number of moles of solute per kilogram of solvent in a solution | |
| 305773130 | enthalpy (heat) of solution | enthalpy change associated with the formation of the solution | |
| 305773131 | enthalpy (heat) of hydration | the enthalpy from H2 (expanding solvent) and H3 (the solvent-solute interaction). It represents the enthapy change associated with the dispersal of a gaseous solute in water. | |
| 305773132 | Henry's Law | the amount of a gas dissolved in a solution is directly proportional to the pressure of the gas above the solution | |
| 305773133 | thermal pollution | oxygen-depleting effect on lakes and rivers of using water for industrial cooling and returning it to its natural source at a higher temperature | |
| 305773134 | Raoult's Law | the vapor pressure of a solution is directly proportional to the mole fraction of solvent present | |
| 305773135 | ideal solution | solution whose vapor pressure is directly proportional to the mole fraction of solvent present | |
| 305773136 | colligative properties | properties of a solution that depend only on the number, an dnot on the identity of the solute particles | |
| 305773137 | molal boiling-point elevation constant | constant characteristic of a solvent that gives the change in boiling point as a function of solution molality; used in molecular weight determination | |
| 305773138 | molal freezing-point depression constant | constant characteristic of a solvent that gives the change in freezing point as a function of the solution molality; used in molecular weight determination | |
| 305773139 | normality | number of equivalents of a substance dissolved in a liter of solution | |
| 305773140 | semipermeable membrane | a membrane that allows solvent but not solute molecules to pass through | |
| 305773141 | osmosis | the flow of solvent into a solution through a semipermeable membrane | |
| 305773142 | osmotic pressure | (pi) the pressure that must be applied to a solution to stop osmosis (pi = MRT) | |
| 305773143 | dialysis | phenomenon in which a semipermeable membrane allows transfer of both solvent molecules and small solute molecules and ions | |
| 305773144 | isotonic solution | solutions having identical osmotic pressure | |
| 305773145 | reverse osmosis | process occurring when the external pressure on a solution causes a net flow of solvent through a semipermeable membrane from the solution to the solvent | |
| 305773146 | desalination | the removal of dissolved salts from an aqueous solution | |
| 305773147 | Van't Hoff Factor | the ratio of moles of particles in solution to moles of solute dissolved | |
| 305773148 | ion pairing | phenomenon occurring in solution when oppositely charged ions aggregate and behave as a single particle | |
| 305773149 | Tyndall effect | the scattering of light by particles in a suspension | |
| 305773150 | colloid (colloidal dispersion) | a suspension of particles in a dispersing medium | |
| 305773151 | coagulation | the destruction of a colloid by causing particles to aggregate and settle out |