CHEM Chapter 13 Vocab

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kikigirl4ever
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CHEM Chapter 13 Vocab
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2010-03-28 13:50:28
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Chapter 13 Vocab
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  1. Solvation
    the attractive interaction of solvent molecules with solute
  2. Hydration
    when solvent is water
  3. Entropy
    the degree of randomness in a system
  4. crystallization
    the process in which a dissolved solute comes out of soltion and forms a crystalline solid
  5. saturated
    solution at equilibrium with undissolved solute
  6. unsaturated
    when we dissolve less solute than needed to form a saturated solution
  7. supersaturated
    when it is possible to form solutions that contain a greater amount of solute than that needed to form a saturated solution
  8. miscible
    when pairs of liguids that mix in all proportions
  9. immiscible
    when liquids do not dissolve in one another ie. gasoline and water
  10. nonpolar
    becomes zero
  11. polar
    becomes a number
  12. ionic
    large number
  13. Sg=kPg
    • Sg= solubility of gas ( molarity )
    • K=constant that is different for each ( mol/L-atm)
    • Pg= parties pressure of gas over solution (atm)
  14. mass % of component
    (mass of component/total mass of solution) X 100
  15. molality ( m)
    moles of solute/kg of solvent
  16. PA=XAPAo
    • PA= vapor pressure of solvent above solution
    • XA= mole fraction of solvent
    • PAo= vapor pressure of pure solvent
  17. Osmosis
    the movement of solvent molecules through a semipermeable membrame from a less concentrated to a more concentrated solution
  18. hypotonic
    if one solution is lover in osmotic pressure in respect to more concentrated solution
  19. hypertonic
    the solution with concentrated solution in osmotic pressure
  20. colloids
    suspensions of particles larger than individual ions or molecules but too smarll to be settled out by gravity
  21. tyndall effect
    the scatter of light caused by a colloidal suspension
  22. Change Tb=kbm
    • ChangeTb= Tb-Tbo boiling point elevation
    • Kb=constant of solvent
    • m = molality of solute ie. nacl + h20 m= 2

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