Structural Formulas

We continued our work from yesterday, beginning with the Lesson 29 PowerPoint.  After preparing for the lesson, students worked through the Lesson 29 worksheet which included another “wafting” lab in which two additional scents were provided for students to smell and connect with molecular formulas.  Students learned that two molecules can have the same molecular formula but smell very differently.  One compound smelled like rum extract, while an isomer of that compound smells like stinky cheese.  The compounds are isomers because they have the same chemical formula but different structural formula.  The lab further enabled students to make connections between compound names, molecular formulas, structural formulas, and smell.

Notes from the whiteboard:

Remaining class time was utilized to read Lesson 29 in the textbook, summarizing the main ideas in the Chapter 6 Notes and working through the practice problems at the end of the lesson.


  • Read Lesson 29 in the textbook.  Login via and enter your username and password:
    • Username: wahps****s-####### (**** = first 4 letters of your last name and ####### = student number).  Remember to include the dash between s and #.
    • Password: S-####### (the S must be capitalized)
  • Write notes for Lesson 29 on the Chapter 6 Notes handout.
  • Work through the practice problems at the end of Lesson 29.
  • Please ask questions about anything from Lesson 29 you do not yet fully understand.