Department
of Chemistry
& Biochemistry
CHM152L-General Chemistry II Syllabus
General Information: Offered Fall, Spring, and Summer
1-hour of Laboratory Science credit
Instructors: All faculty with appointments in the chemistry department, are eligible to supervise CHM152L sections. All sections will utilize graduate and/or undergraduate teaching assistants.
Distribution Block: If taken with CHM152, student can receive 4 hours of lab science credit.
Course Prerequisites/Co-requisite: CHM151, CHM151L, CHM152
Course Description:
CHM152L is the second semester of a 1-year sequence appropriate for pre-professional, science, and engineering majors. Principles, practices, and applications of contemporary laboratory chemistry will be addressed. As a liberal studies course, CHM152L addresses the essential skills of scientific inquiry and quantitative reasoning, and the theme of environmental consciousness. Students will have hands-on experience using the scientific method to describe, quantify, and solve problems of a chemical nature, including several chemical processes that have a direct impact on the environment (such as acid/base and oxidation/reduction reactions).
Course Objectives:
Students will be able to:
1. Demonstrate basic laboratory skills. (Scientific Inquiry)
2. Describe and demonstrate safe laboratory practice. (Scientific Inquiry)
3. Utilize scientific notation and dimensional analysis to solve problems in calorimetry, kinetics, acid/base, and redox reactions. (Quantitative Reasoning)
4. Predict, analyze and experimentally test reaction enthalpies, chemical kinetics, and equilibrium constants. (Environmental Consciousness, Quantitative Reasoning, Scientific Inquiry)
5. Determine the numerical value of chemical concentrations. (Quantitative Reasoning)
6. Predict, analyze and experimentally test the products of oxidation/reduction reactions. (Environmental Consciousness, Quantitative Reasoning, Scientific Inquiry)
Course Structure and Approach:
CHM152L will address chemistry - the science of change, through hands-on laboratory exercises. Using standard laboratory practice and equipment, students will measure, quantify, and describe chemical properties and identify chemical unknowns based on the results of their measurements.
Course Outline:
A. Enthalpy of Formation of MgO - Calorimetry
B. Enzyme Kinetics of Papain
C. Synthesis of a Complex Iron Salt
D. Spectrophotometric Determination of an Equilibrium Constant
E. Acid-Base Chemistry
F. Redox Chemistry
Instruction and Evaluation Methods:
The primary instructional methods utilized in CHM152L are hands-on laboratory exercises. Demonstrations of laboratory methods and techniques will prepare the student to make independent observations of chemical phenomena and measurements of chemical properties.
Assessment of Outcomes:
Experimental observations and results will be completed for each of the six laboratory exercises. Each lab is designed to address the content areas listed in the course outline. Assessment of student learning outcomes is based on the correct identification of the composition or concentration of unknown materials through application of the scientific method (scientific inquiry, quantitative reasoning) and on the results of a final examination (scientific inquiry, quantitative reasoning). Both of these assessment tools test the student's competence with basic laboratory methods and techniques.
The student will earn full credit for a lab exercise if their determined unknown value indicates they have mastered the required techniques, scientific methods and calculations. Partial credit will be awarded if reported values indicate problems with laboratory technique, scientific method, or quantitative analysis.
TEXBOOK AND REQUIRED/OPTIONAL MATERIALS: Required: CHM152L, General Chemistry II Lab Manual 2015-2016 by Hayden McNeil and Laboratory Notebook (bound & 5x5 grid) are required texts for this lab course and are available in the NAU bookstore or University Text and Tool. Indirectly vented safety goggles, closed toed shoes, and appropriate clothing are also required. They should be obtained well before the second lab period. If there are no lab manuals in the chemistry textbook area, inquire at the textbook desk immediately. Optional: Lab coat or apron. More information on this lab is available on the web: http://jan.ucc.nau.edu/~jkn/Labs.html There is also safety training resources in your Bb Learn space, “Chemistry Instructional Labs and Lab Safety”.
Course Grade: The course grade is based on successful completion of the laboratory exercises. Points will be awarded for quizzes, online Loncapa pre/post-lab questions, utilization of a laboratory notebook, two written laboratory reports, a final exam, and on the identification or quantification of chemical unknowns. Grades will be assigned as follows:
POINT ASSIGNMENT:
|
Item Graded
|
Points |
Grading Grade |
Scale Points |
Percent |
|
Unknown Exp. A – Enthalpy of reaction unknown |
80 |
A |
900+ |
90&over |
|
Unknown Exp. D – Molarity NaSCN |
80 |
B |
800-899 |
80-89.9 |
|
Unknown Exp. E - Weak Acid Equivalent Formula Wt |
80 |
C |
700-799 |
70-79.9 |
|
Unknown Exp. F – Percent Sodium Oxalate |
80 |
D |
600-699 |
60-69.9 |
|
Web Based Loncapa Pre and Post Lab Questions |
100 |
F |
<600 |
<60 |
|
Quizzes - Each quiz is worth 20 pts for each of 6 exp. |
120 |
|
|
|
|
Lab Performance (Can lose or gain points) |
|
|
|
|
|
Laboratory Notebook (Two gradings 60 & 70 pts each) |
130 |
|
|
|
|
Reports – Written Exp. B (50 points) & Fe Salt (80) |
130 |
|
|
|
|
Lab Final |
200 |
|
|
|
|
TOTAL POINTS |
1000 |
|
|
|
UNKNOWNS: One unknown will be used for each experiment except B and C. For each of these unknowns your reported answers will be graded on how close they are to the correct answer. Calculation Check printouts (for experiments A, D, E and F) must be stapled onto the unknown report sheet. (No regrades will be allowed for calculation errors!). These unknowns must be turned in by the due dates noted in the schedule are listed later in the syllabus (-10 pts. will be accessed for late unknowns). Unknown report sheets must be complete and turned in on time to your TA and have them review, sign, and date them or points will be taken off for missing work or being late. Any unknown score may be improved by repeating the experiment with a NEW unknown checked out from the stockroom. Repeating an experiment with a previously used or another student's unknown # or data is academic dishonesty.
WEB BASED PRE & POST LAB QUESTIONS: The purpose of the web based Loncapa pre-lab is to help you prepare for experiments and do post lab questions exploring concepts and calculations for each completed experiment. Loncapa modules must be completed by 7:30am on the day you start the experiment. (Experiment A is an exception where the pre lab module is due the second week of the experiment.) The Loncapa pre- and post-lab questions will be worth 100 points. For example if there are 80 possible Loncapa questions and you complete 60 out of 80 questions your points will be calculated by multiplying the fraction you complete by 100 or 100x(60/80) = 75 out of 100 points. Loncapa will open for use by 3pm on 1/23/15.
QUIZZES: A quiz will be given at the start of the period when a new experiment is begun. The quiz will include questions similar to ones in the Loncapa module including 4-6 pre-lab questions for the current experiment and 1-2 post lab questions for the previous experiment. Each quiz will be worth 20 points for each of the six experiments for a total of 120 points. Many of the questions for the final will come from quizzes. The web based Loncapa module for an experiment must be completed before you start an experiment. To work safely in lab, students must be prepared. There will be questions from the experiment risk assessment and Loncapa on the quiz.
LABORATORY NOTEBOOKS: Correct data collection and record keeping is a major objective of this course. A bound laboratory notebook will be used to generate a "permanent" record of all observations (use pen!), data collected, calculations, and error analysis. Data must be copied immediately and directly into the notebook (tape or glue computer-generated graphs into the notebook). You will be penalized 5 pts. per occurrence if you record data or observations in places other than your notebook such as paper towels or the lab manual. A detailed description of how a notebook should be kept is presented in the introduction of the CHM 152L laboratory manual. At the end of every lab period the instructor or TA will write the date and their initials after the last notebook entry for that lab period. 5 pts will be deducted from your total laboratory notebook points each time it is not initialed and dated before you leave. Notebooks will be graded for format and content twice during the semester at unannounced times. Five points per day will be taken off for late notebooks. Notebooks late by more than three days will not be accepted. At the end of the semester, notebooks will be collected and may be kept by the department.
REPORTS: You will be required to write two data analysis reports for this class, for exp. B and the iron salt synthesis and analysis. The report format will be provided online and by the TA who will provide additional information. The report and calculations must be done individually; only data may be shared between lab partners. Late work will lose 10 points per day. Reports will not be accepted if they are more than 3 days late! (See deadlines later in syllabus).
FINAL: Consists of multiple-choice questions from quizzes, Loncapa problems, and all lab work and/or a lab practical. The final is worth 200 points (20% of your grade) & will be given in your normal lab section from 4/20-4/24/15.
LAB PERFORMANCE: Proper technique, safety, and cleanup procedures are required in this lab. Poor technique such as using the balance or pipettors incorrectly, unsafe behavior such as not wearing goggles or not cleaning up a chemical spill will result in the loss of points per incident. Exceptional lab performance above and beyond what is required will be rewarded with extra credit. You are required to clean any used glassware and your work station at the end of every lab period. If you break any glassware you must replace it at the chemistry prep stockroom (you may be billed depending on your total charges). Your workstation drawers must be complete at the end of each lab period. There will be 1-30 point deductions for each problem noted. If you remove glassware from another student's bin or have extra stuff in yours you will lose points. You will also lose points each time you forget to bring your notebook to lab. You will be completing a contract on issues regarding lab performance.
EXTRA CREDIT: An experiment on electrochemistry can be completed for up to 30 extra credit points. The experiment is posted on the CHM152L Homepage.
SAFETY: Safety in the laboratory is of great concern to the chemistry department. You are expected to be familiar with and adhere to the chemistry department safety rules at all times while in the laboratory. Be informed about the hazards of chemicals before you use them (be aware of hazard codes). If you would like additional information, material safety data sheets for every chemical used in this lab are available for your reading in room 228 or 212 and on the web. Do a risk assessment for each experiment noting hazards and precautions. Please talk to your instructor and TA if you have special medical conditions such as respiratory problems, allergies, pregnancy, etc. so that special precautions can be taken. Phones are located in each hallway to contact campus security at 3-3000. Students must clean up their work areas before leaving and cleanup any spills with a damp sponge. Always rinse out the sponge and wring it out after using it. Be sure to always remove disposable gloves before leaving the lab room to prevent cross contamination. Wash your hands at the end of lab as you leave.
Academic Dishonesty: The Department of Chemistry and Biochemistry strictly enforces the University’s policy on academic dishonesty. Sanctions imposed for academic dishonesty include receiving partial or no credit on the item in question without the chance to improve the score, receiving an F for the course, or expulsion from the University. Using another student’s unknown, unknown #, data, results, or report will be treated as academic dishonesty. For group work only raw data can be shared. In addition, if you repeat an experiment you must check out a new unknown from the stockroom. Using the same unknown # twice will be considered academic dishonesty. If other offenses are found in department or university records repeat cases of academic dishonesty will have serious consequences. The most common form of academic dishonesty observed in lab is plagiarism or using some or all of the information from another student on a laboratory report as part of your own report. If you use information from sources such as the lab manual, cite that source in your report, otherwise it will be considered plagiarism.
MAKE-UP LABS: You may attend the other section of CHM152L to make up a missed lab if you have been sick with a doctor’s excuse or miss a lab with an institutional excuse. To attend another lab section your TA will fill out a makup lab slip and you will take it to makeup lab you wish to attend and if there is room the TA of the lab you wish to attend will complete the makeup lab slip and give it to your normal TA. You will be allowed to work in the lab at the instructor's or TA’s discretion. You may not attend make up labs if you fail to attend your normal lab section regularly. You must sign in on the makeup lab sheet for your work to count. Makeup labs can also be arranged via email with your TA.
Getting Started – First and Second Lab Periods:
· Start of first period: A lecture will be given introducing you to CHM 152L and laboratory safety. Watch the video on using the eye wash and safety shower (also MSDS video and safety video if not seen in CHM 151L). Go over use of hotplate stirrer. Check out your locker bin and workstation. Replace any broken or missing items, place extra equipment in the lost and found box, sign the locker list, and give it to the TA.
· Complete assignment I during the safety lecture and turn it in to your TA in lab and fill out the lab performance contract.
· Do assignment II with a lab group (based on assigned lab bench). Complete the calibration exercise and always check the calibration of any pipettor before using it. Do MSDS tutorial and print certificate if this was not done in CHM151L previously.
· Before the second lab period you must obtain a lab manual, lab notebook, goggles, and a pen. Carefully read the introduction and experiment A (Enthalpy of Formation of MgO - Calorimetry) and outline key aspects of the procedure and carefully study the safety information doing a risk assessment before the second lab period (see deadlines listed below). Review technique videos on the instructional labs homepage covering the balance, graduated cylinder, pipets, pipettor, volumetric flask & dilutions, titration, and weighing by difference. Refer to these videos as you use these techniques during the semester. If you miss the first lab all pre lab materials are available on the “Instructional Labs Homepage” and other material is available on Bb Learn under the zero credit course, “Chemistry Instructional Labs and Lab Safety”.
· Start of second lab period: TA will give a pre-lab quiz over the introduction and exp. A and then will give a pre-lab lecture. You will then start experiment A.
· Trouble getting a manual? The introduction and exp. A are posted at: http://jan.ucc.nau.edu/~jkn/CHM152L.html
Important Dates and Deadlines:
1. The last day to add a class or drop without a “W” is Thursday, 09/10/15
2. The last day to withdrawal from a class and/or lab is Friday, 11/06/15.
3. Labor Day - Monday (09/07/15), Veterans Day - Wednesday (11/11/15), Thanksgiving – Thursday and Friday (11/26/15-11/27/15)
SCHEDULE: The following is the lab schedule for CHM152L. The "Dates for Lab” section indicates the dates when the class will work on particular experiments and when assignments are due. The web based Loncapa pre-lab and post lab questions must be completed by 7:30am on the day you start an experiment as noted in the lab schedule below. Pre lab quizzes will be given at the start of the lab periods when your lab section starts a new experiment. No makeup quizzes will be given. Lab lectures will be given nearly every week. In addition, you and your lab partner(s) will periodically get together at the end of lab periods to discuss your Iron Salt data.
Dates for Lab Sections (**Syllabus and schedule subject to change at instructor’s/TA’s discretion.)
|
AB Tues |
CD Wed |
EFG Thurs |
Experiments or Work for Day and Due Dates (Assignments Due Are Bolded) |
Loncapa: Due at 7:30am on the day |
|
9/1 |
9/2 |
9/3 |
Laboratory Lecture, safety/lab assignment I and II, Assignment I & II due at the end of the period. Locker checkout. |
of the experiment. |
|
9/8 |
9/9 |
9/10 |
Quiz Exp. A - Calorimetry, Review use of Loncapa. |
Opens: 3pm 1/23 |
|
9/15 |
9/16 |
9/17 |
Exp. A – Calorimetry. Checkout Unknown Packet in blue book. |
Module A |
|
9/22 |
9/23 |
9/24 |
Quiz Exp. B – Enzyme Kinetics of Papain Investigated by Spectroscopy, Unknown Exp. A due. |
Module B & A |
|
9/29 |
9/30 |
10/1 |
Quiz Exp. C - Start Exp. C - Synthesis of Iron Salt, KxFe(C2O4)y.zH2O, Exp. B Mini Report due. |
Module C & B |
|
10/6 |
10/7 |
10/8 |
Quiz Exp. D - Equilibrium experiment and calculations, finish Exp. C - Purification of Iron Salt, view videos volumetric flask & pipettor. |
Module D |
|
10/13 |
10/14 |
10/15 |
Complete Exp. D and calculations, Analysis for % water in iron salt (Each student does one or more trials), |
Module Post lab C |
|
10/20 |
10/21 |
10/22 |
Quiz Exp. E - Acid Base Chemistry. See videos on weighing-by-difference and titration. Review HCl titration example. Unknown Report Sheet for Exp. D due at the start of the lab period. |
Module E & D
|
|
10/27 |
10/28 |
10/29 |
Exp. E - Acid Base Chemistry, team meeting. |
|
|
11/3 |
11/4 |
11/5 |
Quiz Exp. F – Redox Chemistry – Prep potassium permanganate solution, finish standardization and iron salt if possible. Unknown Report Sheet Exp. E due at the start of the lab period. |
Module F & E |
|
11/10 |
11/18 |
11/12 |
Exp. F - Redox Chemistry, Finish iron salt and start unknown. Empirical formula calculations and unknown report sheet for Exp. F due before you leave lab today. team meeting. |
|
|
11/17 |
11/25 |
11/19 |
Makeup lab. Short Report on the Synthesis & Analysis of Iron Salt and Lab Notebook Due before you leave lab today. |
|
|
11/24 |
11/25 |
11/19 |
Review for final. Makeup lab. |
Module F Postlab |
|
11/25 |
11/25 |
11/25 |
All late unknown report sheets and any other late work due by 5pm on Wednesday, 11/25. NOTHING WILL BE ACCEPTED AFTER THIS DEADLINE. Except section T where the deadline is 4/18 by 1pm. |
|
|
12/1 |
12/2 |
12/3 |
Lab Evaluation. Lab Final given after evaluating the lab. Check current scores, Clean workstation and lab. Locker bin & workstation check-in deadline: Penalty for not checking in your locker bin is $30. |
|
|
12/8 |
12/9 |
12/10 |
Review final grade & lab final. |
|
Lab Sections Offered Fall 2015 (Office hours will be posted, all labs held in building 17, the science lab facility):
|
Sequence |
|
|
|
Rm |
Instructor |
Teaching Assistant |
|
|
|||||||
|
Letter # |
Day |
|
Time |
# |
Name/Office#/Phone# * |
Name |
|
||||||||
|
A1 |
1866 |
T |
2:20-5:20pm |
414 |
Mercer/36-425/32450 |
Kruse, Samantha |
|||||||||
|
A2 |
18204 |
T |
2:20-5:20pm |
415 |
Mercer/36-425/32450 |
Baker, Eileen |
|||||||||
|
A3 |
18205 |
T |
2:20-5:20pm |
416 |
Mercer/36-425/32450 |
Miller, Darren |
|||||||||
|
B1 |
1867 |
T |
6:00-9:00pm |
414 |
Hutchison/36-426/6296 |
Monroe, Meranda |
|||||||||
|
B2 |
18206 |
T |
6:00-9:00pm |
415 |
Hutchison/36-426/6296 |
Baker, Eileen |
|||||||||
|
B3 |
18207 |
T |
6:00-9:00pm |
416 |
Hutchison/36-426/6296 |
Thompson, Timothy |
|||||||||
|
C1 |
1868 |
W |
1:50-4:50pm |
414 |
Mercer/36-425/32450 |
Jeffers, Karen |
|||||||||
|
C2 |
18208 |
W |
1:50-4:50pm |
415 |
Mercer/36-425/32450 |
Ohe, Brittany |
bdo9@nau.edu |
||||||||
|
C3 |
18209 |
W |
1:50-4:50pm |
416 |
Mercer/36-425/32450 |
Botta, Lorranin |
|||||||||
|
D1 |
1869 |
W |
6:00-9:00pm |
414 |
Carpenter/36-325/3779 |
Le, Andrew |
anl226@nau.edu |
||||||||
|
D2 |
18210 |
W |
6:00-9:00pm |
415 |
Carpenter/36-325/3779 |
Ohe, Brittany |
bdo9@nau.edu |
||||||||
|
D3 |
18211 |
W |
6:00-9:00pm |
416 |
Carpenter/36-325/3779 |
Van Gundy, Daniel |
|||||||||
|
E1 |
1870 |
Th |
8:00-11:00am |
414 |
Mercer/36-425/32450 |
Mercer, Steven (Cole) |
|||||||||
|
F1 |
1871 |
Th |
2:20-5:20pm |
414 |
Mercer/36-425/32450 |
Kruse, Samantha |
|||||||||
|
F2 |
18214 |
Th |
2:20-5:20pm |
415 |
Mercer/36-425/32450 |
Jeffers, Alexandria |
|||||||||
|
F3 |
18215 |
Th |
2:20-5:20pm |
416 |
Mercer/36-425/32450 |
Rogers, Bailey |
|||||||||
|
G1 |
2391 |
Th |
6:00-9:00pm |
414 |
Mercer/36-425/32450 |
Monroe, Meranda |
|||||||||
|
G2 |
18216 |
Th |
6:00-9:00pm |
415 |
Mercer/36-425/32450 |
Sunseri, Taylor |
tjs394@nau.edu |
||||||||
|
G3 |
18217 |
Th |
6:00-9:00pm |
416 |
Mercer/36-425/32450 |
Thompson, Tim-Cancel |
|||||||||
|
|
|
|
|
|
|
|
|
||||||||
*There is an instructor and teaching assistant (TA) assigned to each laboratory section. The instructor will be available during normal lab times either in the lab room or in their office. They can also provide help during their office hours. Instructor office hours will be announced the first day of lab and posted. TAs will be available to help during and sometimes before or after the laboratory but not at other times except by appointment. Your TA or instructor can also be contacted via email.
*Syllabus or schedule subject to change at instructor’s/TA’s discretion and circumstances.