THE EXAM!
Monday,
May 2,2016
8:00 am
WE have 245
Days to Get
Ready for a
3,4 or 5
WHAT I NEED TO KNOW
ABOUT THE EXAM!
What is the exam
format?
How is it graded?
When will I know
how I did?
How well does
everybody score?
What is the
exam format?
Two major sections
Section I is multiple
choice (90 minutes)
Section II is free
response (105 minutes)
Section I
60 Multiple Choice Questions covering all
topics (only 50 will be part of your score)
50% of the exam grade
4 choices (letters a-d) per question
Periodic Table and Equation Sheet
NO calculator
90 minutes for this part
Section I Grading
Score is based on
number correct
And ONLY number
correct!
NO PENALTY FOR
GUESSING!
MULTIPLE CHOICE
Example #1
Which element forms an oxide
that is a molecular solid?
a)sodium
b)argon
c)carbon
d)silver
MULTIPLE CHOICE Example #2
Which of the following particulate diagrams best shows
the formation of water vapor from hydrogen gas and
oxygen gas in a rigid container at 125°C?
MULTIPLE CHOICE Examples #’s 3-5
Questions 3–5 refer to three gases in identical rigid
containers under the conditions given in the table below.
MULTIPLE CHOICE Examples #’s 3-5
3. The average kinetic energy of the gas molecules is
(A) greatest in container A
(B) greatest in container B
(C) greatest in container C
(D) the same in all three containers
4. The density of the gas, in g/L, is
(A) greatest in container A
(B) greatest in container B
(C) greatest in container C
(D) the same in all three containers
5. If the pressure of each gas is increased at constant temperature
until condensation occurs, which gas will condense at the lowest
pressure?
(A) Methane
(B) Ethane
(C) Butane
(D) All the gases will condense at the same pressure.
Section II
o
o
o
o
o
Free Response
105 minutes
50% of the exam grade
“2 major parts”
Given information:
1. Periodic Table
2. Equation Sheet
3. Reduction Potential Table
Section II Grading
Quantitative Problems
& Essays with various point
values
Grading protocol (rubric)
established & partial points
awarded for each part.
“Conditional grading” is in
effect.
Section II
o Questions #1-3
1. Quantitative section
2. CAN USE a calculator
3. Each question is worth 10
points
o Questions #4-7
1. Short Essays/Problems
2. Each question is worth 4 points
3. CAN USE a calculator
Section II
o Problems 1-3
 Topics vary, examples are
•
•
•
•
•
•
Equilibrium
Stoichiometry
Kinetics
Gas laws
Thermodynamics
Electrochemistry
 Conditional Grading in effect
 Sig Figs “Count” on 1 problem
Example of Q’s 1-3
2009 Free Response
Example Problem
Section II
o Problems 4-7
 Problems are “essays”
• Get to the point by using key terms
 Must do both all of them
 Topics vary, examples are
•
•
•
•
•
Structure and Properties of Matter
Chemical Reactions and Rates
Thermodynamics
Lab Procedures
Equilibrium
Example of Q’s 4-7
2011B Free Response
Example Problem #6
Example Test #3
Example of Q’s 4-7
Who grades the exams?
(AP Chemistry Reading)
Chief Reader
Question Leader
Table Leader (2-4/Q)
Reader (8-10/TL)
(Aids)
When are the
exams graded?
Dates: 7 Days in early-June
Venue: Salt Lake City, UT
Readers: 300+ College and
High school teachers are
readers. They must teach AP
Chemistry or equivalent
courses in their institutions
When will I know how I
did?
•You
and I will get your
results in early July
AP SCORE COMPARISON
Mr.
Mr.
Morrow Morrow's
’s 2015
Average
2011
2012
2013
2014
2015
5
17.0
16.3
18.2
10.1
8.4
11.7
17.8
4
18.4
19.3
21.3
16.6
15.2
11.7
25.1
3
19.5
20.1
19.5
25.7
28.1
41.0
31.4
2
14.6
15.0
15.1
25.8
25.5
17.6
14.1
1
30.4
29.2
26.4
21.8
22.8
17.6
14.1
Mean
2.77
2.79
2.78
2.78
2.78
2.82
3.28
# of
students
122,651
132,777
125,856
149,392
153,557
17
174
Year
AP
Score
74 % of my students score a 3 or higher
Transition to New
Test?
 Old
style will still be on Unit
Tests
Matching
Section
Equation Section
Equation Sheet
MATCHING
a)1s2 2s2 2p5 3s2 3p5 4s1
b)1s2 2s2 2p6 3s2 3p6
c)1s2 2s2 2p6 2d10 3s2 3p6
d)1s2 2s2 2p6 3s2 3p6 4s2
e)1s2 2s2 2p6 3s2 3p6 4s2 3d3
1. An impossible electronic configuration
2. The ground–state electronic configuration for the atoms
of a transition element
3. The ground–state electronic configuration of a negative
ion of a halogen
4. The ground–state electronic configuration of an alkaline
earth element
5. An excited-state electronic configuration of an atom
Equation Section
 Equation writing
 Three statements
 For each you must write a balanced
equation (1 point for reactants and 2 points for
products; 1 point for balancing)
 There is a follow up questions for each
equation (1 point)
Equation Section Directions
o Provide a balanced chemical equation
o Equations should only show the reacting substances
o And then an additional question will be asked about
the equation/reaction
o The majority of the credit for a response will be
earned for writing the balanced equation
o The remaining credit will be earned for correctly
answering the question that follows each reaction,
which will require the student to focus more on the
meaning of the reaction.
Equation Section
o A solution of nickel (II) bromide is
added to a solution of potassium
hydroxide.
o Identify the spectator ions in the
reaction mixture.
Equation Section
o A solution of acetic (ethanoic) acid is
added to solid calcium carbonate.
o What visual evidence would be seen
that indicates a chemical reaction
has occurred?
o (If hydrochloric acid replaces acetic
acid will the reaction occur slower or
faster. Explain)