Chem133 chapter13

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  1. Define miscible
    soluble in each other in any proportion.
  2. What is a rule of thumb for when a solute will dissolve in a solvent?
    • Like dissolves like.
    • Substances with similar intermolecular forces will dissolve in each other.
  3. What are the six intermolecular forces in order of decreasing strength.
    • Ion-dipole
    • Hydrogen Bond
    • Dipole-Dipole
    • Ion Induced Dipole
    • Dipole Induced Dipole
    • Dispersion
  4. Equation of heat (enthalpy) of a solution(⌂Hsoln)
  5. Define salvation and hydration.
    Process of surrounding solute particles with solvent particles (solvent particles are water for hydration)
  6. What affect does charge density have on the heat of hydration?
    The higher the charge density, the more negative ⌂Hhydr is.
  7. What is Henry's law?
    • The solubility of a gas (Sgas) is directly proportional to the partial pressure of the gas (Pgas) above the solution
    • This means that gases become less soluble in hotter solutions.
  8. Molarity
  9. Molality
  10. Mass percent
  11. volume percent
  12. mol fraction
    • X
  13. What is Raoult's law?
    • vapor pressure of a solvent (Psolvent) above a solution equals the mole fraction of solvent (Xsolvent) times the vapor pressure of the pure solvent(P°solvent)
  14. What physical properties depend on the number of solute particles, not their chemical identity?
    • The Colligative Properties!
    • *Vapor pressure lowering*
    • Freezing point depression
    • Boiling point elevation
    • Osmotic pressure
  15. Equations for freezing point depression and boiling point elevation?
    • m- solution molality
    • Kb & Kf- constants
  16. Find Osmotic pressure
  17. What is the van't Hoff factor (i)?
    How can we find colligative properties of strong electrolyte solutions with this factor?
    • \
    • for vapor pressure lowering 
    • for boiling point elevation
    • for freezing point depression
    • for osmotic pressure

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Chem133 chapter13
2013-12-02 08:40:28
Chem Chemistry 133 Chem133 Chemistry133 Test3 Foust

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