CHE 124 L GENERAL CHEMISTRY II LABORATORY
CA 03
SPRING 2016
Laboratory Meeting Times:
Section No.
CA01
CA02
CA03
Day
Wednesday
Thursday
Friday
Professor:
Course Number:
Prerequisites:
Laboratory Location:
Class Hours:
Office Location:
Office Hours:
Office Telephone:
E-mail:
Location:
Faculty Website:
Time
2:30 - 5:20 PM
8:00-10:50 AM
8:30 - 11:20 AM
Location
Lewis 308
Lewis 308
Lewis 308
Instructor
Dr. Bell
Dr. Williams
Dr. Williams
Jerome K. Williams Ph.D., Associate Professor Chemistry
CHE 124L (1 credit)
CHE 123 & CHE 123L
Lewis Hall Room 308
Refer to above table for laboratory section (day & time)
Lewis Hall Room 310
M, T, W
8:30 – 10:30 AM
(or by appointment)
(352) 588-8336
jerome.williams@saintleo.edu
University Campus
http://faculty.saintleo.edu/jerome.williams/index.htm
I. REQUIRED TEXT & LABORATORY MATERIALS
1.
2.
Tro, Chemistry: A Molecular Approach. 3rd Edition, Prentice-Hall. Students are to
purchase text packaged with Selected Solutions Manual & Mastering Chemistry CD
(ISBN 978-0-321-920645)
Hall, James. Experimental Chemistry 9th Edition, Brooks/Cole Cengage Learning.
(ISBN 978-1-133-61148-6)
Lab Supplies:
Laboratory Goggles, Scientific Calculator, Laboratory Coat
II. COURSE DESCRIPTION
This laboratory course introduces students to fundamental chemical, separation, and
spectroscopic techniques. An introduction to qualitative analysis provides students with
additional opportunities to work with unknown substances and determine their composition.
There is one three-hour laboratory scheduled each week. A course fee may apply. All students
registered for this course must also be registered for CHE 124.
III. LEARNING OUTCOMES
While Saint Leo University is a Benedictine institution with a deep, rich sense of tradition; the guiding
principle we are most proud of is that we are a student-centered learning community. To maintain our
goal of being heralded as “a leading Catholic university of international consequence for the 21st century”,
the general chemistry curriculum has been redesigned to employ a Peer-Led Team Learning (PLTL)
model of instruction. Traditional chemistry courses would have 3 hours of lecture, a 3 hour lab, and
perhaps a recitation session every week. In the PLTL workshop model, active learning in peer-led groups
engage students in the process of learning chemistry. Each class meeting may be composed of “minilectures”, experimental data collection, interpretation and analysis of data, and problem-solving sessions.
The effectiveness of this method has been demonstrated in many university environments. This approach
is collaborative & interactive. Classroom experiences cannot be reproduced once they have been missed.
If you have questions, please ask your instructor for more information.
Upon course completion, students will be able to do the following:
1. describe global concepts in chemistry (e.g., chemical equilibrium, acids & bases, reaction
thermodynamics, etc.) and their connectivity to other scientific fields like biology, medicine,
pharmacy, physics, etc. (community).
2. use the scientific method of investigation to collect, interpret, & analyze data (laboratory).
3. cultivate the ability to solve problems and think critically (excellence).
4. creatively use chemical knowledge to gain a greater appreciation for science (respect).
IV. METHODS OF ASSESSMENT
Laboratory course averages will be incorporated into the final course grade as described in the
CHE 124 lecture syllabus. Individual laboratory grades will be based on the following items.
10 Laboratory Activities @ 35 points each
1 Laboratory Final Examination @ 150 points
Total Points
350 points
150 points
500 points
Weekly Laboratory Experiments:
Active learning in chemistry centers on the laboratory. Each week students engage with hands-on
learning activities that follow the prescribed laboratory schedule. For most labs, experiments are subdivided into a pre-laboratory section, a short lab quiz to assess student preparation, and learning to
develop fundamental skills associated with laboratory work.
Pre-Laboratory Questions
Pre-laboratory questions are to be answered by each student BEFORE the laboratory meeting.
The questions will be collected at the start of lab. A student will not be permitted to complete the
experiment unless a completed pre-laboratory assignment is turned into the instructor.
Pre-Laboratory Hand-written plan
A hand-written plan should be brought to the lab unless otherwise noted by the instructor. The
plan can be an outline, a list, or a flow chart, whichever format the student prefers. If there are particular
safety concerns, they should be noted, also be aware of any formulae and reactions that will take place
during the experiment. Know how to correctly spell indicators, and chemicals that will be used.
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Laboratory Quiz
Expect a quiz when you come to lab, this way every student knows that he/she must come
prepared for that day’s experiment. Quizzes are administered by the instructor at the beginning of lab, so
do not be late to class. Once the experiment has begun, there is no make- up quiz. At the instructor’s
discretion, a student may be sent home if their score on a quiz is too low, since this reflects a lack of
understanding by the student concerning the experiment to be conducted that day.
In-Lab Performance
This section contains the observations, results, and calculations for that week's experiment. The
in-lab section is typically due at the end of a laboratory period, although for certain experiments
the due date will be extended. Credit can be lost for failure to indicate units, show the proper number of
significant figures, show mathematical calculations, etc.
Laboratory safety is important. Each student is responsible for reading and understanding
laboratory safety and to follow the instructions in your lab text. The departmental safety rules explained at
the first meeting must be followed when working in the laboratory.
Final Examination
A comprehensive laboratory final examination is to be given the week following the last
laboratory experiment. The point value for the lab final will be worth 100 points.
Grading Scale:
The grading scale in laboratory and lecture are the same.
Numerical Range (Percentage)
94 – 100
90 – 93
87 – 89
84 – 86
80 – 83
77 – 79
74 – 76
70 – 73
67 – 69
60 – 66
<60
Course Grade
A
AB+
B
BC+
C
CD+
D
F
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V. SCHEDULE
Module
One
Topic / Assignment
Molecular Structure, Forces of Attraction, Liquids & Solids




Two
Draw Lewis structures for molecules, compounds, & ions
Explain the role valence electrons play in ionic and covalent bonding
Describe VSEPR theory & list two major features associated with VSEPR theory
Assign VSEPR designation, molecular geometry, polarity, & hybridization to
compounds, molecules & ions
 List and characterize the types of attractive forces found in substances
 Identify forces of attraction present in molecules, compounds, ions
 Describe characteristic properties of liquids & solids
 Explain energetic of phase transitions & apply these in application problems
 Construct and/or interpret a phase diagram
Solutions


Three
Define a solution and describe how it forms
Determine the concentration of a solution in terms of molarity, molality, mass %,
volume %, ppm, ppb, mole fraction, mole %
 List four colligative properties and describe role these play in solution chemistry
 Solve application problems involving colligative properties
Chemical Kinetics & Nuclear Chemistry

Four
Describe characteristics associated with zero, first, and second order kinetic
systems
 Solve application problems involving zero, first, and second order kinetic systems
 List three types of radioactive particles along with their relative strengths
 Distinguish between fission and fusion
Chemical Equilibrium


Five
Define the law of mass action
Explain the significance of the magnitude of an equilibrium constant in terms of
reaction outcomes
 Differentiate between homogeneous and heterogeneous equilibrium
 Calculate equilibrium constants or concentrations for various chemical systems
 Discuss LeChatlier’s Principle and be able to apply it to reaction systems
Acids & Bases






Define acid and base using three classification systems (Arrhenius/ BronstedLowry/ Lewis)
Identify conjugate acid-base pairs in chemical reactions
Define amphoterism and provide examples relevant to chemistry/biology
Calculate pH of acids & bases (strong or weak)
Explain structure and function of indicators in determining pH of a substance
Predict the pH of a given salt solution
4
Six
Ionic Equilibria of Weak Electrolytes






Seven
List constituents found in a typical buffer system
Discuss how a buffer system functions
Describe how to prepare a buffer solution fixed pH using chemical reagents
Calculate pH of Buffer System using Henderson-Hasselbach equation
Define solubility, common ion effect
Calculate solubility product constants or concentrations for various chemical
systems
Reaction Thermodynamics (Free Energy, Entropy, Enthalpy)

Eight
Discuss the role that entropy and enthalpy play in reaction spontaneity (free
energy)
 Perform calculations involving free energy, entropy, and enthalpy
Electrochemistry




Identify oxidation, reduction, oxidizing & reducing agents in chemical reactions
Diagram, label, and explain how an electrochemical cell functions
Calculate cell potentials to determine spontaneity in galvanic or electrolytic
systems
Balance oxidation/reduction (redox) reactions in acidic or basic environments
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Laboratory Schedule
Experiment No. & Title in Experimental Chemistry (9th Ed.),
by J.F. Hall
Week
No.
Dates
1
January 11-15
Orientation & Safety Briefing
Review of Significant Figures & Graphing Data
2
3
January 18-22
January 25-29
Experiment 20: Calorimetry
Experiment 19: Molecular Weight of Volatile Liquid
4
February 1-5
Experiment 27: Determination of Chloride Ion and Calcium Ion in
Water Samples
5
February 8-12
Experiment 28: Colligative Properties 1: Freezing Point Depression
and the Determination of Molar Mass
6
February 15-19
Experiment 30: Rates of Chemical Reactions
7
February 22-26
8
February 29-March 4
9
March 7-11
11
March 14-18
12
March 21-25
13
March 28-April 1
Experiment 60: Qualitative Analysis of Selected Anions
14
April 4-8
Experiment 39: Determination of Iron by Redox Titration
15
April 11-15
Experiment 31: (Week one) Titrimetric Determination of an
Equilibrium Constant
Experiment 31: (Week two)
Experiment 33: Stresses Applied to Equilibrium Systems
Spring Break (No Lab Meeting)
Experiment 56: Qualitative Analysis of the Group I Cations
Laboratory Final Exam
VI. STUDENTS WITH DISABILITIES
Appropriate academic accommodations and services are coordinated through the Office of Disability
Services, which is located in Kirk Hall Room 121. Students with documented disabilities who may
need academic accommodation(s) should email their requests to adaoffice@saintleo.edu or call x8464.
VII. ACADEMIC HONESTY POLICY
The Academic Honor Code is published in it entirely in the Saint Leo University Catalog. The first
paragraph is:
As members of an academic community that places a high value on truth and the pursuit of
knowledge, Saint Leo University students are expected to be honest in every phase of their academic life
and to present as their own work only that which is genuinely theirs. Unless otherwise specified by the
professor, students must complete homework assignments by themselves (or if on a team assignment,
with only their team members). If they receive outside assistance of any kind, they are expected to cite the
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source and indicate the extent of the assistance. Each student has the responsibility to maintain the highest
standards of academic integrity and to refrain from cheating, plagiarism, or any other form of academic
dishonesty.
VIII. ATTENDENCE POLICY
The PLTL approach to learning chemistry is INTERACTIVE. Teaching chemistry in this format
requires that students prepare for every class; pupils are engaged in active learning while in class and
must participate proactively within the learning community. Given the nature of the class sessions, it is
not possible to make-up missed classes or missed labs.
Grades are dependent upon attendance. There are times when it is not possible to attend a lab due
to illness, or another excused absence. If you know you are going to be unavailable for your scheduled
lab, try to attend another lab in the same week taught by your instructor. If this is not possible, then the
student may attend another section, but must obtain written permission from both instructors allowing
him/her to attend the different instructor’s section.
The following attendance guidelines will be enforced in general chemistry.
o
The laboratory instructor will cover you for the first excused absence per term.
o
Unexcused absences will result in a grade of zero (0) for the missed lab.
o
A student who accumulates three or more absences in laboratory during a term will
earn an F grade in the laboratory course.
o
There are no opportunities at the end of the semester for making up missed labs or
acquiring extra credit.
You must bring your laboratory text, lecture text, scientific calculator, and problem notebook to
every class session.
IX. LATE WORK / MAKE UP POLICY:
Some kind of work will be submitted for evaluation at most every class meeting; therefore, late
work of any kind will not be accepted. Late is defined as work submitted anytime after it has been
collected by the instructor (e.g. if you come to class 2 minutes after work has been collected, your work
will not be accepted.). A score of zero will be entered into the grade book for late work unless
arrangements have been made with the instructor in advance. Please note that making "arrangements"
requires a 2-way communication between the student and instructor.
There are no opportunities to arrange make-up homework, quizzes, labs, activities, etc. after they
have been missed. The PLTL workshop pedagogy is both collaborative & interactive. Classroom
experiences cannot be reproduced once they have been missed.
If you are interested in Saint Leo's general policy see the SLU 2015-2016 Catalog under the heading
"Class Attendance".
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X. COURSE POLICIES, STUDENT & INSTRUCTOR EXPECTATIONS:
1. Attitude and preparation are everything, not just in this class, but also in life.
a. The instructor welcomes questions posed by students both inside and outside class. Do
not be afraid to ask for help if you need it.
b. Use the course web site; it is there to help students learn about chemistry.
c. Attend supplemental instruction (SI) and ask questions. “Knowledge is the beginning of
wisdom.”
d. Visit the Learning Resource Center (LRC) and use the tutors.
2. Each student is expected to attend every class prepared and eager to learn. Attendance will
be taken at every class meeting.
a. No excuse is acceptable; no amount of effort adequate until it is effective.
b. Excellence is the norm, not the exception. Welcome to the real world.
c. Any effort less than your absolute best should not be acceptable to any student nor will it
be tolerated by your instructor.
3. If a student has three or more absences from laboratory in a given term, then that pupil will
receive an F grade in the lab course.
4. The instructor attends every class eager to teach. Anything less will not be tolerated by
students who paid for the instruction time.
5. During laboratory all students will adhere to the departmental safety rules described at the
orientation briefing. At the instructor's discretion, any student who violates the safety
guidelines will be awarded a zero (0) for that experiment and asked to leave the laboratory.
PROTECTION OF THE ACADEMIC ENVIRONMENT:
Disruption of academic process is the act or words of a student in a classroom or teaching environment
which in the reasonable estimation of a faculty member: (a) directs attention away from the academic
matters at hand, such as noisy distractions, persistent, disrespectful or abusive interruptions of lecture,
exam or academic discussions, or (b) presents a danger to the health, safety or well being of the faculty
member or students. Education is a cooperative endeavor – one that takes place within a context of basic
interpersonal respect. We must therefore make the classroom environment conducive to the purpose for
which we are here. Disruption, intentional and unintentional, is an obstacle to that aim. We can all aid in
creating the proper environment, in small ways (such as turning off beepers and cell phones, and neither
chatting nor sleeping in class), and in more fundamental ways. So, when we speak in class, we can
disagree without attacking each other verbally, we wait to be recognized before speaking, and no one
speaks in a manner or of off-topic content that disrupts the class. Any violation of this policy may result
in disciplinary action. Please refer to the Student Handbook for further details.
Saint Leo University’s Commitment to Academic Excellence Statement (abbreviated)
Academic excellence is an achievement of balance and growth in mind, body, and spirit that develops a
more effective and creative culture for students, faculty, and staff. It promotes integrity, honesty, personal
responsibility, fairness, and collaboration at all levels of the university. At the level of students,
excellence means achieving mastery of the specific intellectual content, critical thinking, and practical
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skills that develop reflective, globally conscious, and informed citizens ready to meet the challenges of a
complex world.
XI. LIBRARY RESOURCES
Cannon Memorial Library Resources
Library Instruction
To arrange library/research instruction for your classes, please contact:
Elana Karshmer
Viki Stoupenos
Steve Weaver
Sandy Hawes
elana.karshmer@saintleo.edu
viki.stoupenos@saintleo.edu
steven.weaver@saintleo.edu
sandy.hawes@saintleo.edu
University Campus
FL, GA, SC Centers
MS, TX, VA Centers
COL and DL
Cannon Memorial Library
Librarians are available during reference hours to answer questions concerning research strategies,
database searching, locating specific materials, and interlibrary loan (ILL).
Reference Hours
Monday – Thursday
Friday
Saturday
Sunday
9 a.m. – 10 p.m.
9 a.m. – 5 p.m.
9 a.m. – 7 p.m.
10 a.m. – 6 p.m.
The library provides an 800 number and an email address for general reference services: 1-800359-5945 or reference.desk@saintleo.edu . The library’s mailing address and local telephone
numbers are:
MC2128, 33701 State Road 52, Saint Leo, FL 33574
352-588-8477 (Reference Desk)
352-588-8476 (Circulation Desk)
352-588-8258 (Main)
352-588-8259 (Fax)
Online Catalog “LeoCat” (All Books and Media)
Click on Library Catalog (LeoCat) on the Cannon Memorial Library website
(http://www.saintleo.edu/library). Simple Search choices are: title, author, keyword, subject, or journal
title. Use Advanced Search to set limits or expand your search terms. To borrow books from Cannon
Memorial Library, present your SLU ID at the Circulation Desk. To have books mailed to you, use the
Interlibrary Loan and Document Delivery link on the library’s website, complete the online request form,
and submit it.
Online Library Resources (Articles and E-books)
Saint Leo provides its own array of online article databases and e-book resources supporting campus,
online, center, and distance learning classes. Use the Online Library Resources link on the Cannon
Memorial Library homepage to see the latest subscription databases, e-book collections, etc.
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