Unit 3 Solubility – Learning Standards

Use the following learning outcomes to keep track of your learning:

UNIT III  SOLUBILITY EQUILIBRIA

SOLUBILITY EQUILIBRIA (Concept of Solubility)

  • G1.      classify solutions as ionic or molecular given the formula of the solute
  • G2.      describe the conditions necessary to form a saturated solution
  • G3.      describe solubility as the concentration of a substance in a saturated solution
  • G4.      use appropriate units to represent the solubility of substances in aqueous solutions
  • G5.      measure the solubility of a compound in aqueous solution
  • G6.      describe the equilibrium that exists in a saturated aqueous solution
  • G7.      write a net ionic equation that describes a saturated solution
  • G8.      calculate the concentration of the positive and negative ions given the concentration of a solute in an aqueous solution
  •  
  • H:     SOLUBILITY EQUILIBRIA (Solubility and Precipitation)
  • H1.      describe a compound as having high or low solubility relative to 0.1 M by using a solubility chart
  • H2.      use a solubility chart to predict if a precipitate will form when two solutions are mixed and identify the precipitate
  • H3.      write a formula equation, complete ionic equation and net ionic equation that represent a precipitation reaction
  • H4.      use a solubility chart to predict if ions can be separated from solution through precipitation and outline the process
  • H5.      predict qualitative changes in the solubility equilibrium upon the addition of a common ion
  • H6.      identify an unknown ion through experimentation involving a qualitative analysis scheme
  • H7.      devise a procedure by which the contaminating ions in hard or polluted water can be removed
  • I:     SOLUBILITY EQUILIBRIA (Quantitative Aspects)
  • I1.      describe the Ksp expression as a specialized Keq expression
  • I2.      write a Ksp expression for a solubility equilibrium
  • I3.      calculate the Ksp for AB and AB2 type compounds when given the solubility of a compound
  • I4.      calculate the solubility of AB and AB2 type compounds from the Ksp
  • I5.      predict the formation of a precipitate by comparing the trial ion product to the Ksp value using specific data
  • I6.      calculate the maximum concentration of one ion given the Ksp and the concentration of the other ion
  • I7.      demonstrate and describe a method for determining the concentration of a specific ion
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