Lesson 11: Acids and Bases

• Hook: Discussion on everyday acid and bases commonly used and their characteristics (Adapted from Haberer, S, Salciccioli, K, & Sanader, M. (2011). Nelson Chemistry 11 University Preparation. Toronto: Nelson Education Ltd.)

Content:

• Introduction to acids and bases, Arrhenius Theory, Brownsted-Lowry Theory, weak and strong bases
• Jigsaw: strong and weak acids, and strong and weak bases (Adapted from Douglass, S., Finkle, T., Gibbons, K., Searle, S., & Stewart, K. (2011). Chemistry 11 Teacher's Resource. Whitby, Canada: McGraw-Hill Ryerson Limited.)

Consolidation:

• Venn-Diagram of the different acid-base theories

Other Teaching Ideas:

• Acids and bases labs: http://www.nuffieldfoundation.org/practical-chemistry/acids-and-bases
• Demonstration: pH indicator strips
• Gizmo: pH Analysis or pH Analysis: Quad Color Indicator
• Analogy of pH scale to Richter scale or decibel scale – activity: ask students to compare the scales and explain the “intensity” or how the exponent is used ((2008). In Purelifestore.com. Retrieved April 1, 2013, from http://www.purelifestore.com/pH-Scale-N-Your-Body.html)
• Practice chemistry worksheets: http://misterguch.brinkster.net/pra_solutionworksheets.html