AP Chemistry Name ____________________________________Period ___ Date ___/___/___

Unit 6 Practice TestUNIT 6 – ACIDS AND BASES

Test Date: Tuesday, 12/17 (period 1) and Wednesday, 12/18 (period 2)

Reviewing for the test:1. Complete the Unit 6 concept review sheet (due test day)2. Complete the online multiple choice practice test (due Monday, 12/16, by 11pm)

a. Website: myap.collegeboard.org (you will have to log in & view the AP chemistry course page)b. Allocate about 35 minutes to complete this practice test (no calculator!)

3. Complete the following FRQs. Answer keys will be available online to check your work. 4. Do the reflection below. For any topics you are unsure about, try the extra practice problems listed from the

textbook. 5. Come ask me for help with any concepts you are stuck on! I’m available before and after school.

Reflection:For each of the topics below, rate how well you understand them/how consistently you can do these kinds of problems. 1 = got it 2 = need some practice 3 = totally lost

Rating Topic Extra Practice ProblemsIdentifying Bronsted Lowry acids and bases and determining conjugate acid-base pairs. 16.13, 16.15, 16.17,

Calculating pH for a strong acid or base. 16.41, 16.43, 16.45, 16.47

Converting between pH, pOH, [H+] and [OH-] 16.35, 16.36

Neutralization reactions and remaining pH **review your homework for this!

Weak acid definitions and particulate diagrams 16.2, 16.5

The temperature dependence of water’s pH/Kw 16.27, 16.28, 16.31

Writing weak acid ionization equations and Ka expressions 16.19, 16.49, 16.50

Writing weak base ionization equations and Kb expressions 16.67, 16.69

Converting between Ka and Kb 16.75, 16.77

Calculating and using pKa and pKb 16.102

Using ICE tables to calculate Ka, pH, or [H+] 16.51, 16.55, 16.57Calculating percent ionization/using percent ionization for ICE tables 16.53, 16.63, 16.71, 16.73

Hydrolysis: predicting the pH of salts in water 16.83, 16.84

Identifying buffer solutions 17.19, 17.31Explaining how buffers work/writing net ionic equations to support buffer explanations 17.4, 17.23

Identifying which acid to use as a buffer based on Ka 17.31Predicting the pH of a buffer/explaining how to adjust the pH of a buffer 17.3, 17.29

Calculating the pH of a buffer using the Henderson-Hasselbalch equation 17.21, 17.23

Buffer Particulate Diagrams 17.1FRQ Practice:

2019 #3

2016 #4

2014 #2