The pH scale is actually based on logarithms rather than just simple numbers. The fact-filled video begins with an explanation of the auto-ionization of water. Then it describes the relationship between H+ and OH- in every solution. It uses the z-diagram to solve acid-base problems before introducing the more complex calculations solved through scientific notation and logarithms.

Concepts

ph, ionization, acids and bases, equilibrium, ions

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Additional Tags

science

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Instructional Ideas

• Create additional practice problems using a z-diagram to solve
• Review scientific notation before showing the video

Classroom Considerations

• Requires prior knowledge of chemical equations and ions

Pros

• Includes two different methods for solving ph calculations

Cons

• Video is not engaging and has trouble holding the viewers' attention

Common Core

HSN-RN.A.2 HSF-IF.C.8.b HSF-LE.A.4