CP34 – Long Blocking

Date

• Tuesday, April 3rd

Lab Reports Collected

• Thoughts?
• Results?
• Difficult aspects? Easy parts?
• Formatting?

Long Block Part 1: Acid-Base Calcs

Final Idea: K_w

• K_w = [OH^–] [H⁺] = 1 x 10^-14
• If I know [H⁺] then I know [OH^–]
• pH + pOH = 14
• pH to [H⁺]
• Examples of Calculations

Long Block Part 2: Acid-Base Calculations

In-Class Project: Ch. 15 #66

• for each part determine the pH, pOH, [OH^–], [H⁺]
• create a single table summarizing answers
• plot graph of pH (y) vs volume NaOH added (x)

Long Block Part 2: Doing the work!

• one class group
• use shared spreadsheet! [LINK]
• wait… what?
• sharp spike near EQ
• pH = 7 @ neutral
• [H⁺] = [OH^–] = 1 x 10^-7

Homework

• Nope