[H+] and pH

We elected to take our time working through Lesson 86, starting off by learning about the strongest acids and bases in the world:

Next, we worked through a set of class notes and practice problems pictured below (the Lesson 86 PowerPoint is available for reference), connecting molar concentration of H+ or OH- with pH.



After the notes, students transitioned to the Lesson 86 section of the Lessons 85-87 packet.

The next day, we began class by practicing the skill of calculating pH from molarity and molarity from pH.  Students were reminded that Google Chrome can be used as a calculator.  Desmos.com offers a nice web-based scientific calculator as well.  Students had the remainder of class to work through the Lesson 86 section of the Lessons 85-87 packet.

Some additional videos that might be helpful:

Students requiring further practice with the math in this lesson should watch the Crash Course video below:



  • Read Lesson 86 in the textbook and complete the exercises assigned in the work packet.  Login via hs.saplinglearning.com 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)
  • Please ask questions about anything from Lesson 86 you do not yet fully understand.

Opportunities For Help Outside of Class:

  1. Mr. Swart’s office hours: Mondays, Tuesdays, and Thursdays after school until at least 3:00 (later with advanced notice)
  2. Use the vast number of resources available on this website – check each lesson!
  3. Email Mr. Swart for help if staying after school is not possible
  4. Form a study group with other students  to review concepts from class
  5. Attend MASH after school (M/T/Th in Library)
  6. Attend Math Lab after school (T/Th in Room 124)



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