Yeah! It

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Yeah! Its Friday!How about a quick review!!

• What is a homogeneous mixture?
• Give an example of a homogeneous mixture?
• Why does oil not dissolve in water?
• If you have salt water, what is salt? What is
  the water?

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Properties of Solutions
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Rate of Dissolvingp.502-504

• Factors
• Type of solute and solvent
• Temperature
• Particle size

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• Solubility
• amt of solute that dissolves in a given quantity
  of a solvent at a given temp.
• Solute can be solid, liquid or gas
• Miscible
• 2 liquids that will dissolve in each other
  (soluble)
• Immiscible
• 2 liquids that will not dissolve in each other
  (insoluble)

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• Saturated solution
• contains the maximum amt of solute based on temp.
• Unsaturated solution
• contains less than the max amt of solute based
  on temp
• Supersaturated solution
• contains more than the max amt of solute based
  on temp

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• Factors Effecting Solubility of Gases
• Temp gases are more soluble in colder temps
• Have you ever noticed the bubbles on the bottom
  of a pan before the water is boiling?
• Pressure gas solubility increases as pressure
  increases

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• Henrys Law at a given temp the solubility of a
  gas in a liquid is directly proportional to the
  pressure of the gas
• S1 S2
• P1 P2

This is Henry
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Molarity and Dilutions p.509-513

• Molarity (M) - The number of moles of solute per
  liter of solution
• Diluting a solution
• M1V1 M2V2
• Molarity Volume Molarity Volume

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Percent by volume and mass p.513-515

• Percent by volume ((v/v)) volume of solute/
  volume of solution x 100
• Percent mass (mass/volume m/v) mass of solute
  (g)/ volume of solution(ml) x 100