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Solubility. What is solubility? How do I interpret solubility curves? Conditions of Solution Equilibrium. You order SWEET tea on a hot day. It arrives and you take a giant gulp. YUCHKG! They served you unsweet and the waiter is nowhere in sight. Sugar packets are on the table.

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solubility

Solubility

What is solubility?

How do I interpret solubility curves?

Conditions of Solution Equilibrium

slide2

You order SWEET tea on a hot day.

  • It arrives and you take a giant gulp.
  • YUCHKG! They served you unsweet and the waiter is nowhere in sight.
  • Sugar packets are on the table.
  • Do you dare? Why or why not?
will these substances mix
Will these substances mix?
  • Can you explain why or why not?
  • Water and Vinegar
  • Lithium chloride and water
  • Water and oil
  • Gasoline and alcohol
what is solubility
What is Solubility?
  • Solubilitydepends on:
  • Nature of the solute and solvent
  • Temperature
  • Pressure (for gases)
solubility is
Solubility is …
  • Solubility = the amount of substance required to form a saturated solution with a specific amount of solvent at a specified temperature.
  • grams of solute per 100 grams of solvent
  • TEMPERATURE must be specified
  • Pressuremust be specified.
  • GENERALLY – Solubility increases as Temp increases.
  • But NOT ALWAYS TRUE! Exceptions: NH3, SO2, HCl
three conditions of solution equilibrium
Three conditions of solution equilibrium:
  • Unsaturated Solution: contains less solute than a saturated solution
  • Saturated Solution: contains maximum amount of dissolved solute at specified temp
  • Supersaturated Solution: contains more dissolved solute than a saturated solution
examples
Examples
  • Carbonated water is supersaturated with carbon dioxide
  • Air can be supersaturated with water forming clouds/precipitation
  • Hand Warmers use supersaturated sodium acetate.
how do hand warmers work
How do hand warmers work?
  • Hand Warmers in Action click here!
  • Video Link
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