Welcome to AP CHEMISTRY
AP Chemistry is a rigorous college-level course that will require students to spend as much
time outside of class as they do in class. This class will cover topics ranging from thermochemistry to
acid-base buffer systems. We will complete labs and POGIL activities, as well as note videos and many
AP-style problems. All this is to assiduously prepare you for the AP Chemistry exam in early May.
The summer assignment will be completed in two parts. The first part will involve bookwork
due on ​July 14th,​ and the other part will be a compilation of parts of AP-style problems as well as
additional practice problems due the​ first day of class​.
Some Tips:
1) Sign up for the class Remind by texting ​@fb4d4c​ to​ ​the number ​81010
2) Save the class website (​www.mrsjohnsonsscience.com​) and check it frequently.
3) Save my correct email address (​[email protected]​) and CONTACT ME
FOR HELP if you are having trouble or have a question. If you feel confused on the summer
work and assume it won’t affect your performance once school starts, you are wrong.
4) AP Chem moves VERY quickly, and does not slow down until the first week of May. It is the
equivalent of two semesters of university chemistry, which usually meets for 7hrs/wk. We
will have an average of 3 hrs/wk to get through material. It is crucial that you do not let
yourself fall behind.
5) Complete the summer work thoroughly, and use this Skills Checklist to make sure you are
prepared.​ ​By Sept. 5th, 2017, you should be able to complete these skills in your sleep. ​Be
ready for a quiz encompassing these skills​ in the first week of school.
❏ Memorize the seven diatomic elements
❏ Name chemical compounds (ionic) and molecules (covalent) (Ch. 2)
❏ Use sig figs in measurements and calculations (Ch. 1)
❏ Complete calculations in scientific notation WITHOUT using EE function on calcs (Ch. 1)
❏ Quickly complete metric conversions
❏ Use dimensional analysis to convert between moles, mass, particles and gas volume (Ch. 3)
❏ Solve stoichiometry problems, including limiting reactant problems (Ch. 3)
❏ Calculate theoretical yield and percent yield (Ch. 3)
❏ Differentiate between strong and weak electrolytes (Ch. 4)
❏ Complete molarity, mass, moles, and volume calculations (Ch. 4)
❏ Draw Lewis dot diagrams for molecules (last year’s chem course)
AP Chemistry Summer Assignment, 2017
Part 1: Due July 14th, 2017
Familiarize yourself with chapters 1-4 of your Zumdahl textbook, then complete the
following end-of-chapter problems. Please make sure work is neatly shown for all problems,
and final answer is circled. When you are ready to submit them, please ​scan/take a clear
picture of each page and email them to me​.
Chapter 1: ​ Problems 28, 29, 34, 38, 118, AP multiple choice review questions 3,4,5
Chapter 2: ​Problems 28, 29, 36, 55, 103, 112, 115
Chapter 3:​ Problems 10, 11, 28, 45, 46, 75, 76, 87, 96, 109, 124, 125, 150, 162
Chapter 4:​ Problems ​23, 27, 28, 30, 42
Part 2: Due on first day of class
Work each problem below on a separate sheet of paper. Show all work and circle answers.
1. Determine the mass of lithium hydroxide produced when 75.0g of lithium are reacted with 75.0
mL of water (density is 1.00 g/mL) according to the equation:
Li + H​2​O → LiOH + H​2
2. Determine the percent yield of water produced when 64.8 g of hydrogen reacts with 82.3g of
oxygen and 86.4g of water are collected.
2H​2​ + O​2​ → 2H​2​O
*Questions 3-6 are AP exam-style free-response questions (or portions of questions).
3. In the space below, draw a complete Lewis electron-dot diagram for a molecule of S​2​Cl​2.​. Make
sure you draw all electron pairs.
4. The chart to the right lists several
molecules and their associated Lewis
electron-dot diagrams.
a) In the space provided, draw the
missing Lewis dot diagram.
b) Of the four molecules shown, which
contains the shortest carbon-carbon
bond? Explain.
5. You need to design an experiment to determine the number of water molecules in one formula
unit of hydrated nickel(II) chloride.
Available Equipment and Materials (not all are necessarily used):
Bunsen burner
electronic balance
6.00 g hydrated nickel(II) chloride
crucible and cover
funnel and filter paper
Distilled water
ring stand and ring clamp
clay triangle
test tubes
test tube clamp
hot plate
crucible tongs
(a) Circle the items you will need to use. Then, write a procedure of pertinent steps needed
to carry out the task.
(b) Construct a data table showing all data that needs to be collected. Include units where
appropriate (leave values blank).
(c) Show the calculations that are needed to determine the formula of the hydrated
compound. Actual calculations with numbers are not needed.
(d) A common error results if a student handles the cooled crucible with their fingers before
the final weighing. Why and how would this affect the experimental results?
(e) List and describe two other common sources of experimental error that may occur with
this procedure. Describe how each may be avoided. Also, state whether each would result in
the experimentally determined number of water molecules being too high or too low.
6. A student needs to prepare 100 mL of 5.000 x 10​-2​ M Na​2​SO​4​ solution. The student has the items
below available for use.
Solid Na​2​SO​4
50 mL volumetric flask
100 mL beaker
Squeeze bottle
100 mL Erlenmeyer flask
100 mL volumetric flask
100 mL graduated cylinder
10 mL volumetric pipet
Distilled water
Dropper
50 mL buret
Electronic balance
20 mL volumetric flask
a) Circle each item the student will need (not all will be used).
b) Write a procedure or describe the steps needed to prepare the solution. Include specific
pieces of equipment. Include values for any amounts of substance needed and show work.
c) In a later part of the experiment, the student needs 20.0 mL of .0100 M Na​2​SO​4​ solution.
How much of their original solution will they need to dilute?
d) Briefly describe steps the student will need to carry out this dilution. Include specific pieces
of equipment (student has access to all equipment in table above).