Chapter 7 Practice Test and Answer Key

Below are 38 questions covering most of the material from Chapter 7. You will be using the Periodic Table from the AP Chemistry exam for this test. You will receive a copy of the periodic table on Monday, November 16th. Please have questions ready for a review on Monday. Have a good weekend.

Mr. Brueckner

Monday, October 26th Part 2

Below is the solution for #55 for tomorrow's homework. The answer for the problem in the book is different than what I determined. Also, #48 is on the previous post. Homework for tomorrow is 46, 48, 53, 54, 55, 56.

Monday, October 26th

Below are the solutions of the homework assigned since the beginning of Chapter 6. The homework assigned has been: 19, 21, 24, 27, 28, 29, 30, 32, 34, 35, 37, 38, 39, 40, 42, 43. The bold problems were done in class as examples.

Tuesday, October 20th

The solution to the practice quiz from the Mole Ratio Lab is given below. Tomorrow is the quiz for the Mole Ratio Lab. You will work on your own without partners and receive 15 minutes to complete the quiz.

Homework: Read pages 241-256 (Sections 6.1-6.2). On page 281, problems 19, 21, 24, 27, 28. Solutions are below.

Friday, October 10th

Below are the solutions to the homework problems for Chapter 5. The top three images are the solutions to the 2004 AP Chemistry test given to you as review. The Chapter 5 test will be entirely written.

Thursday, October 8th

Homework for Wednesday, 10/7 - pages 235-237, problems 59, 60, 64, 65, 106
Homework for Thursday, 10/8 - page 236, problems 85 and 86
I would suggest that you read pages 222-224 (Section 5.8) to review the lecture from today on non-ideal behavior of gases. This will be addressed conceptually on the Chapter 5 test, which will be given on Monday, 10/12.
Friday, 10/9, will be spent reviewing for the exam. We will be working on two old AP Chemistry test written problems from 2004.
All solutions to the homework will be posted for the weekend so you can view them as you study.

Tuesday, October 6th

Your Determination of the Molar Mass of Butane Lab is due tomorrow (10/7). You will also have a quiz that covers the concepts of the lab tomorrow (10/7). Below are the answers to the homework assigned on Friday and today.
68) P(H2)=12.2 atm; P(He)=6.2 atm; P(Tot)=18.4 atm
49) 0.268 g He
51) V= 4.23 L
55) 2.47 mol H2O
80) Will be covered in class.
81) 30.00 g/mol; NO gas
82) 63.3 g/mol

Thursday, October 1st

Homework for tonight is pages 233-234, problems 36, 37, 38, 40, 41, 45

Answers
36 a) 3.81 x 10^-5 mol
36 b) 179 atm
36 c) 3.6 L
36 d) 333 K or 60. degrees C
37) 4,440 g. He and 2,240 g H2
38) 0.091 atm
40) 0.046 L = 46 mL
41) 3.0 L > 2.5 L, therefore, the balloon will burst.
45) 5.1 x 10^4 torr

Wednesday, September 30th

Sorry that I did not post the solutions to the homework assigned today. We will cover the problems briefly tomorrow, 10/1.

Friday, September 25th Part 2

Here is the solutions guide to the Chapter 4 Practice Test. Remember, Monday's test is 20 multiple choice questions.

Friday, September 25th Part 1

There was a request to see the solutions to problems 63, 65, and 66a. Here they are. 66 (a) and (b) are on an earlier post. (With problem 64 (a).)