Quantitative Analysis Laboratory CHEM 321L
Fall 2014, 1 credit hours
Department of Chemistry and Physics
University of South Carolina Aiken
Dr. C. L. Leverette
SBDG 312, 803-641-3291
chadl@usca.edu
Lab: T 9:25 PM—12:05 PM, SBDG 316
Office Hours: MF 11:00-11:50 AM and by appointment.*
*Please feel free to e-mail me when needed. My appointment schedule is flexible. Therefore, if
the office hours stated above do not fit into your schedule, we can set up a time that is convenient
for you.
Corequisite: CHEM 321
Text and required materials:
CHEM 321L: Quantitative Analysis Lab: “Leverette’s LAB Notebook”, Fall 2014, Version IV
Scientific calculator (capable of log, scientific notation, square root, nth root, and exponents)
Safety Goggles (supplied by the Department)
Required dress and conduct:
•
•
•
•
•
•
No shorts
Closed top shoes (absolutely no sandals or flip-flops)
Must always wear safety goggles when in the lab.
Long hair should be pulled back completely away from the face.
Turn off cell phones while in lab. (unless the instructor has granted special
permission.)
No food or drink allowed in the lab.
Failure to adhere to these or any other safety measures could lead to dismissal from the lab. You
will not be able to make up the lab and you will receive a 0 for that lab. These rules are for your
safety and the safety of your classmates.
If you come to lab without the proper dress, you will be asked to leave until you change your
clothes and/or shoes.
In the event of an emergency, the appropriate emergency service and a faculty member must be
notified immediately. I plan to be in lab with you at all times.
Emergency
Dr. Leverette
Dr. Ruszczyk
x6111
x3291
x3420
Course Objectives: CHEM 321L is designed to reinforce the key concepts learned in CHEM
321. In addition, the lab is designed to allow us to practice what we are learning. Chemistry is an
experimental science and the lab is an integral part of your study. We will be doing labs that
incorporate both non-instrumental and instrumental methods typically performed by analytical
chemists. Accuracy and precision are “king” in this course, so your attention to detail is very
important for you to be successful.
Each written lab will outline the objectives and the procedures for each lab. You are expected to
study this write-up prior to coming to lab. You only have 3 hours of lab instruction and all of the
labs will take the entire time. If you are not familiar with the lab, time will be wasted and you
will not finish in the allotted time. Each lab must be completed, so if you run out of time,
you must finish the lab outside of the lab period at a time convenient to the instructor. I will
not be giving pre-lab lectures since most of the material will be written in the lab. I will be
available during the lab to answer questions and to help you with experimental techniques. You
should arrive promptly and immediately begin the lab. I will have all the materials you will need
ready at your disposal. You must work diligently and efficiency to accomplish each lab. Failure
to work hard will result in incomplete labs. I cannot help you or your grade if you do not work
hard.
Grading:
Labs (9) at 50 pts each
Total Points for the Course
450
450
Final letter grades will be based on the percentage of the total points earned and the scale below.
≥ 90
>85
>80
>75
>70
>65
>60
≤ 59
A
B+
B
C+
C
D+
D
F
Each written lab report, worth 50 pts, will be awarded the following points for each section.
Correct lab format
and calculations
Accuracy of answer
30 pts
Total pts for each lab
50 pts
20 pts (when applicable)
The tolerance for accuracy for a given lab is based on the performance of the class as a whole and
on the results obtained from previous classes. This is completely at my discretion. For labs that do
not require an accurate answer to a known amount, all 20 points will be given if the lab is done
properly.
Lab write-ups for a given lab are due the following week prior to beginning the next lab. If
lab write-ups are not turned by the start of the next lab period, 5 pts will be deducted from that
lab’s grade for each day it is late. For instance, if a lab is 3 days late and the lab report initially
earned 45 points, the final points for that lab would be 30.
Lab Report Guidelines: The written example on page 1 in “Leverette’s Lab Notebook” is
the lab format you should used for this class. It should be copied in detail to receive full
credit (30 pts) for the lab format and calculations sections of the lab. Pay special attention to
this, especially on the first lab. I do not care how you collect the raw data from the lab. I
recommend using a dedicated notebook that you can bring each week. I will not be grading this
notebook. I have designed a lab write-up format that mimics what is often used in industry. The
goal is to give you experience using this format that is required of analytical chemists in a “real
world” setting. This is very similar to the format I was required to use when working in industry.
In industry, you would have a dedicated notebook for data collection, but your “deliverable” to
your client would be a written report. You may be the brightest chemist ever, but if you cannot
communicate through presentation and writing then you are ineffective and will have a hard time
finding and keeping a job. I want you to treat me as your client. You are providing me with a
research report that I can use for my operations and to show my management. This mock
situation will give you a good feel for what is expected of you when you enter the workforce.
Yes…you will be expected to write once you leave college!
The lab reports must be typed on a computer. Use available graphing software (Microsoft Excel)
when appropriate. You may handwrite the calculations under the Results and Discussion section,
but do so neatly! Lab reports are due prior to the start of the next lab period.
Attendance: Attendance of all labs is expected, though excused absences are understandable.
Unexcused absences on lab days will result in a numerical grade of 0 for that lab. Excused
absences will be allowed at my discretion. You will need to make up the lab at a time that is
convenient to both you and the instructor.
Hazardous Chemicals: In this course, you will be using hazardous reagents for the experiments.
If you follow the proper dress and conduct guidelines stated in this syllabus, you have no need to
worry. I will be present during the lab period if a problem should occur. In addition, eye wash
stations, lab showers, and fire extinguishers are readily available in the lab if needed. Please
contact me with any questions.
Disability Statement: If you have a physical, psychological, and/or learning disability that might
affect your performance in this class, please contact the Office of Disability Services, B&E 134,
(803) 643-6816, as soon as possible. The Office of Disability Services will determine appropriate
accommodations based on documentation.
471 University Parkway • Aiken, SC 29801
803-648-6851 • 1-888-WOW-USCA
Copyright © 2004 by the Board of Trustees of the University of South Carolina.
http://www.usca.edu
CHEM 321/321L Fall 2014 Tentative Course/Lab Schedule
Date
8/22 F
8/25 M
8/27 W
Chapter
Ch. 0 and 1; The Analytical
Process/Chemical
Measurements/Syllabus
Read Ch. 2 (Tools of the
Trade) on your own.
8/29 F
9/3 W
9/5 F
9/8 M
9/10W
Ch. 3-4; Experimental Error,
Statistics, Quality Assurance
and Calibration Methods
9/12 F
9/15 M
9/17 W
9/19 F
9/22 M
10/10 F
10/13 M
10/15 W
Tuesday, 8/26:
Introduction/Assign Lab
Drawers/Clean Glassware and
Lab #1: Perfecting the Art of
Pipetting and Calibrating
Volumetric Glassware
Tuesday, 9/2: Lab #2
The Percent of Water in Hydrated
Barium Chloride
Tuesday, 9/9: Lab #3
Understanding a Normal
Distribution and Statistical
Analysis of Weighing
Tuesdays, 9/16, 9/23, 9/30:
Lab #4 The Gravimetric
Determination of Iron in a
Commercial Unknown
Ch. 6, 7, parts of 10 and 26;
Chemical Equilibrium,
Activities, Titrimetric Methods
of Analysis, Precipitation
titrations and Calculations
Tuesday, 10/7: Lab #5
Preparation and Standardization
of HCl and NaOH Solutions
10/8 W
Ch. 8-11; Titrimetric Methods
of Analysis, SA/SB, WA/SB,
etc., Buffers, Polyfunctional
Acids/Bases, EDTA
Date
Chapter
Lab
10/17 F
Ch. 5 and 26; Standard
Additions and Gravimetric
Analysis
9/24 W
9/26 F
9/29 M
10/1 W
10/3 F
10/6 M
Lab
Tuesday, 10/14: Lab #6
Titrimetric Analysis of a
Commerical Soda Ash Unknown
for Sodium Carbonate
Tuesday, 10/21: No Lab
10/20 M
10/22 W
10/27 M
Ch. 8-11 continued.
10/29 W
10/31 F
11/3 M
11/5 W
11/7 F
11/10 M
11/12 W
11/14 F
11/17 M
11/19 W
11/21 F
11/24 M
12/1 M
12/3 W
Ch. 17-19; Introduction to
Spectrometric Methods
Ch. 22-24; Introduction to
Analytical Separations,
GC, LC
12/5 F
Ch. 13-15; Intro. to
Electrochemistry,
Potentiometry, Redox
Titrations
12/10 W
11 AM; Final Exam
Tuesdays, 10/28 Lab #7
The Determination of
Chloride in a Commercial
Unknown by the
Mohr Method
11/4 (No Lab –
Election Day)
Tuesday, 11/11, 11/18:
Lab #8 The
Determination of Nitrate
in Water by UV-Vis
Spectrophotometry
Tuesday, 11/25: Lab #9
Determination of Ethanol
in Wine by GC
Chromatography and the
Internal Standard Method
Tuesday, 12/2:
Check-out