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15 Cards in this Set

  • Front
  • Back
pure solvent
seperated solvent molecules
^H1-endothermic-requires energy so positive
pure solute
seperated slute molecule
^H2-endothermic, positive
separated solvent and solute molecules combine
--form imf, form solution
^H3-exothermic, energy released, negative
net energy
non polar slovents will dissolve
non-polar solutes
polar solvents will dissolve
things with charge
-polar substances
-ionic substances
interionic forces
hold ions together in a crystal(force between two ions)
ion-dipole forces
-attraction of water dipoles for cations and anions
-pulls the ions out of the crystalline lattice
-strongest force determines solubility
-if ion-dipole is stronger then interionic,substance dissolves
-ions become surrounded by water molecules
-only soluble substances can be hydrated
-the forward rate of a reaction equals the reverse rate
-once you reach equilibrium the concentration of the solution stays constant
dissolving process
ions go into solution, add more solid, keep dissolving, some collide and reform
"dynamic" equilibrium
-dissolving rate equals precipitation rate
-forward rate=reverse rate
solution that is in equilibrium
super saturated
solution that contains more dissolved substance than a saturated system (honey)
-its you tricking the system to hold more then its supposed to
solution not at equilibrium and in which more of the substance can dissolve