Particles in Solution

Like dissolves like

• Polar solvents dissolve polar and ionic solutes
• Nonpolar solvents dissolve nonpolar solutes

Solutions as Conductors of Electricity

• Electrolyte
  • forms ions in solution
  • conducts electricity
• Nonelectrolyte
  • does not form ions in solution
  • does not conduct electricity

  Ways ions are formed in solution

  1. dissociation
     ionic solid separates into positive and negative ions when dissolved
  2. Ionization
     polar molecules form ions as the solvent pulls their molecules apart

  Effects of Solute Particles

  • Freezing Point Elevation
    
    addition of a solute lowers the freezing point of the solvent
  • Boiling Point Elevation
    
    addition of a solute raises the boiling point of the solvent
    

    Return to Physical Science Help Menu

    Return to Barnhardt's World

    This page hosted by Get your own Free Home Page