5 Steps to a 5 AP Chemistry 2019

AP Chemistry Practice Exam 2 ❮ 343

The AP exam is a timed exam; keep this in mind as you prepare. When taking the

various tests presented in this book, you should follow the AP exam rules as closely as

possible. Anyone can improve his or her score by using notes, books, or an unlimited

time. You will have none of these on the AP exam, so resist the temptation to use

them on practice exams. Carefully time yourself, do not use other materials, and use

a calculator only when expressly allowed to do so. After you have finished an exam,

you may use other sources to go over questions you missed or skipped. We have seen

many students get into trouble because the first time they attempted a test under

“test conditions” was on the test itself.

AP Chemistry Practice Exam 2, Section I (Multiple Choice)

Time—1 hour and 30 minutes

NO CALCULATOR MAY BE USED WITH SECTION I

Cl C Cl D

C

Cl

Cl

Cl C Cl

Cl

Cl

Cl C Cl

Cl

Cl

HH

HCl B O

A

O

1. Which of the labeled arrows in the diagram above
   represents the strongest intermolecular force?
   (A) A
   (B) B
   (C) C
   (D) D

The following information applies to questions 2–5.

A student builds a galvanic cell to take advantage

of the following reaction:

Zn(s) + 2 AgNO 3 (1 M) → 2 Ag(s) + Zn(NO 3 ) 2 (1 M)

The cell’s voltage is measured and found to be

+1.56 volts.

2. What happens to the voltage when a small
   amount of silver nitrate is added to the silver
   compartment?
   (A) There is no change in the voltage.
   (B) The voltage becomes zero.
   (C) The voltage increases.
   (D) The voltage decreases, but stays positive.
   3. What happens to the cell voltage when the stu-
   dent replaces the Zn(NO 3 ) 2 solution with 1 M
   ZnCl 2?
   (A) There is no change in the voltage.
   (B) The voltage becomes zero.
   (C) The voltage increases.
   (D) The voltage decreases, but stays positive.
   4. If the standard reduction potential of silver is
   0.80 V, what is the standard reduction potential
   of zinc?
   (A) +0.76 V
   (B) -0.76 V
   (C) -0.04 V
   (D) +0.04 V
   5. What happens to the cell voltage after the cell has
   reached equilibrium?
   (A) There is no change in the voltage.
   (B) The voltage becomes zero.
   (C) The voltage increases.
   (D) The voltage decreases, but stays positive.

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