Ksp v Qsp

What happens when you add more ions to a solution that already contains them? Examine the common ion effect with a video from JFR Science. Viewers take a look at solubility scenarios, then use solubility values to determine the outcome of changing conditions.

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CCSS: Adaptable
Instructional Ideas

  • Have the class practice determining the saturation of a solution from comparing solubility product constants and solubility product quotients
  • Perform a demonstration to illustrate the value comparisons to add visual reference to the concept
Classroom Considerations

  • Pupils should be very familiar with the common ion effect and types of solutions to fully grasp the content of the resource


  • The White Cliffs of Dover make an excellent example of solubility in equilibrium
  • Content reinforces prior knowledge and uses it to build a new skill

  • None
Common Core