CHEM-2123 Organic Chemistry I - Lab
Debra Sackett
Credit Fall 2022
Section(s)
CHEM-2123-008 (51838)
LAB M 8:00am - 10:50am RGC RG10 1303.00
CHEM-2123-009 (51839)
LAB W 8:00am - 10:50am RGC RG10 1303.00
Course Requirements
CHEM 2123 – Organic Chemistry I Lab
Fall 2022 Syllabus
meeting time |
meeting location |
section number |
synonym |
M 8:00-10:50 a.m. |
RG10 1303.00 |
008 |
51838 |
W 8:00-10:50 a.m. |
RG10 1303.00 |
009 |
51839 |
Instructor: Dr. Debbie Sackett
e-mail address: dsackett@austincc.edu
office: RGC 1333.03 (building 1000, enter through 1333.00)
office phone number: 512-223-3314
office hours day/time |
location |
comments |
MW 12:30-1:45 pm |
RG10, room 1333.03 |
priority given to CHEM 2323/2123 students |
MW 3:30-4:00 pm |
RG10, room 1333.03 |
priority given to MW CHEM 1311 students |
TTh 11:00 am-12:15 pm |
RG10, room 1333.03 |
priority given to TTh CHEM 1311/1111 students |
COURSE DESCRIPTION
Emphasis is placed on techniques, properties and reactions, and reinforcing principles offered in the lecture portion of the course.
Prerequisites: CHEM 1312 and CHEM 1112 or the equivalent.
Co-requisite: CHEM 2323
Instructional Methodology: This lab is held on campus.
Course Rationale: This course covers the fundamental facts; laws, principles, theories and concepts of chemistry necessary for further work in science or science related subjects.
COURSE MATERIALS
Text: “Organic Chemistry Laboratory Techniques”, 2nd ed, by Lisa Nichols. This is an OER resource. You can download a copy from this website: https://open.umn.edu/opentextbooks/textbooks/369
PPE: ACC does not provide safety eyewear for the lab. You must buy goggles/glasses prior to performing the first experiment. ANSI-approved goggles/glasses are stamped with Z87.
Calculator: You will need a scientific or graphing calculator.
Internet and computer access: You will need to have internet access in order to watch recorded lecture videos (optional). You will need to print lecture outlines and perhaps homework assignments. Everything can be accomplished on campus.
For additional information on technology support for students, see the technology support statement on the last page of this syllabus.
LAB OUTLINE/CALENDAR
Monday |
Wednesday |
exp. # |
exp. title |
Aug. 22 |
Aug. 24 |
|
Orientation and Safety |
Aug. 29 |
Aug. 31 |
Exp. 3 |
Thin-Layer Chromatography |
Sept. 12 |
Sept. 7 |
Exp. 4 |
Column Chromatography |
Sept. 19 |
Sept. 14 |
Exp. 5 |
Simple Distillation |
Sept. 26 |
Sept. 21 |
Exp. 6 |
Fractional Distillation |
Oct. 3 |
Sept. 28 |
Exp. 7 |
Gas Chromatography |
Oct. 10 |
Oct. 5 |
Exp. 1 |
Extraction |
Oct. 17 |
Oct. 12 |
Exp. 2 |
finish exp. 1 and Recrystallization and Melting Point |
Oct. 24 |
Oct. 19 |
Exp. 8 |
finish exp. 2 and Steam Distillation |
Oct. 31 |
Oct. 26 |
|
exp. 8 continues |
Nov. 7 |
Nov. 2 |
|
finish exp. 8 and IR Activity |
Nov. 14 |
Nov. 9 |
Exp. 10 |
Polarimetry |
Nov. 21 |
Nov. 16 |
Exp. 11 |
Tests of Nucleophilic Substitution Mechanisms |
Nov. 28 |
Nov. 30 |
TBD |
TBD |
Dec. 5 |
Dec. 7 |
|
lab check out |
COURSE PREPARATION AND GRADING
Graded Components
- Lab Safety (50 points). This is a one-time assignment (composed of a report and quiz) that you will complete and submit online after reviewing the materials in the safety folder and attending the in-person orientation the first week of classes. The classroom meeting and graded components are mandatory. The safety report is worth 40 points and the safety quiz is worth 10 points.
- IR Exercise (50 points). This is a one-time activity scheduled for the last week of Experiment 8. More details will be provided as the deadline approaches.
- Prelab Assignment (10 points). This is a test of student understanding of the lab, reading from the text and the lab lecture videos. Students will get two opportunities to complete this activity and the highest score is kept. This is due the same day the lab is scheduled, by the start of lab (7:40 a.m.).
- Lab Preparation (10 points). Full credit is based on three criteria: are you on time for lab, did you bring your written procedures, and did you bring you own safety eyewear.
- Lab Procedures and Data/Observations – PDO (15 points). You will write a procedure summary to be used in lab, and then collect data and observations while performing the experiment. You will show this to the instructor at the beginning of lab. You cannot perform an experiment without these written procedures. The instructor will sign off on your observations before you leave lab that day.
You will submit a paper copy (along with the report form) to the instructor. It is due in lab (by 10:50 a.m.) the following week.
- Report Form (45 points). This will involve analysis and interpretation of data provided for the experiment. In addition, there will be questions to answer regarding the techniques employed in the lab. You will submit a paper copy (along with the PDO) to the instructor. It is due in lab (by 10:50 a.m.) the following week.
- Quiz (20 points). This will be completed after submission of the report form/lab report. It is an online quiz, located in the appropriate lab folder in Blackboard. This will generally be timed, and only one attempt will be allowed. This is due one week after the scheduled lab day, EOD.
Compilation of grades for each experiment are as follows:
Prelab ………………………………………………..10 pts. |
Lab Prep…………………………………...……….10 pts. |
Procedures and Data/Observations....................15 pts. |
Report Form……………………………...….….....45 pts. |
Quiz……………………………………………...…20 pts. |
Total = 100 pts. |
Grading
In addition to the mandatory activities, there are 11 scheduled labs. You will be allowed one drop lab, so only 10 labs will count toward your grade. There is no extra credit.
graded items |
possible points |
lab safety (mandatory) |
50 |
9 labs (combined components) @ 90 points each |
1000 |
IR activity (mandatory) |
50 |
total = |
1100 |
A standard grading scale will be used.
|
grade |
percentage |
points needed |
|
A |
90-100% |
990-1100 |
|
B |
80-89% |
880-989 |
|
C |
70-79% |
770-879 |
|
D |
60-69% |
660-769 |
Class time
Due to the pandemic, I want to be efficient with the time we spend in lab. As a result, there will be significant preparation required before attending lab.
Before lab:
- Read: The experiment and the appropriate sections of the lab book.
- Watch: Prelab lecture video
- Write: A stepwise procedure for the experiment. Please bring a printed, paper copy to lab.
- Complete: The online prelab.
All of these activities must be complete by 8:00 a.m. on the day the lab is scheduled
During lab: Complete the experiment and record relevant data and observations. Be sure the instructor initials you document before you leave.
After lab:
- Scan and upload the procedures and data/observations by EOD.
- Complete the report form or lab report. Be prepared to turn it in the next lab period by 10:50 a.m.
- Complete the online quiz which is due one week after the lab is complete, EOD.
Due to ACC policies concerning the Family Education Rights and Privacy Act (FERPA), instructors cannot communicate by telephone or e-mail students with information about their grades. We can meet and discuss grades via Blackboard Collaborate Ultra.
GENERAL COURSE INFORMATION AND POLICIES
Attendance:
- Students must complete the Lab Safety exercise, Organic Chemistry Lab Basics and perform a minimum of 7 experiments (the entire experiment for multi-week labs) in order to pass the lab. If you miss more than 4 experiments, you will automatically fail the lab.
- Being on time to lab is critical. Lab will begin with up to 10 minutes of Q and A. After that, I will begin the lab safety and demonstration lecture. If you are sufficiently late that you miss the safety discussion, you will not be permitted to perform the experiment. It is imperative you make every effort to be on time to lab; your safety and the safety of your classmates is very important to me.
Late assignments will result in deduction of 10% per day. I will not accept assignments that are more than one week late.
Incomplete Grade Policy: An instructor may award a grade of “I” (Incomplete) if a student was unable to complete all of the objectives for the passing grade in a course due to medical/emergency reasons. Incompletes can be given if you complete 75% (7 labs) of the course work with at least a 70% average. An incomplete grade cannot be carried beyond the established date in the following semester. The completion date is determined by the instructor but may not be later than the final deadline for withdrawal in the subsequent semester.
Withdrawal Policy: It is the responsibility of each student to ensure that his or her name is removed from the roll should he or she decides to withdraw from the class. The instructor will not drop students, except if the student:
- does not have the proper prerequisites for the class
- has not successfully completed lab orientation and safety before the census date
If a student decides to withdraw, he or she should also verify that the withdrawal is submitted before the Final Withdrawal Date. The student is also strongly encouraged to retain their copy of the withdrawal form for their records. Students who enroll for the third or subsequent time in a course taken since Fall 2002, may be charged a higher tuition rate, for that course. State law permits students to withdraw from no more than six courses during their entire undergraduate career at Texas public colleges or universities. With certain exceptions, all course withdrawals automatically count towards this limit. Details regarding this policy can be found in the ACC college catalog.
The drop deadline is November 17, 2022. The lecture and the lab are required in each chemistry course. If a student drops/withdraws from one section of the course, they must drop/withdraw from the corequisite.
If you stop attending class and do not withdraw yourself from the course, you will receive a grade of F for the semester. Reinstatement into a course after withdrawing is only possible if the student was withdrawn through college error.
STUDENT LEARNING OUTCOMES
Students will be able to perform the following skills:
- Know and follow procedures for safe laboratory practice
- Keep a detailed laboratory notebook as a record of experimental procedure and outcomes
- Use knowledge of functional groups, electronic, and steric effects to predict/explain physical properties and reactivity of organic compounds
- Learn and use common methods to isolate, purify, and identify organic compounds
- Use GC method to identify organic compounds.
- Carry out simple syntheses of organic compounds
GENERAL EDUCATION COMPETENCIES
Upon completion of this course, students will demonstrate competence in:
- Critical Thinking
Gathering, analyzing, synthesizing, evaluating and applying information.
- Interpersonal Skills
Interacting collaboratively to achieve common goals.
- Quantitative and Empirical Reasoning
Applying mathematical, logical and scientific principles and methods.
- Technology Skills
Using appropriate technology to retrieve, manage, analyze, and present information.
- Written, Oral and Visual Communication
Communicating effectively, adapting to purpose, structure, audience, and media
COLLEGE POLICIES
Health & Safety Protocols
Operational areas of ACC campuses and centers are fully open and accessible through all public entrances. While some health & safety protocols are no longer mandatory, the college encourages its staff, faculty, and students to be mindful of the well-being of all individuals on campus. If you feel sick, feverish, or unwell, please do not come to campus.
Some important things to remember:
- If you have not done so, ACC encourages all students, faculty, and staff to get vaccinated. COVID-19 vaccines are now widely available throughout the community. Visit www.vaccines.gov/ to find a vaccine location near you.
- Campuses are open to faculty, staff, and students. The college and its departments and offices may invite internal and external guests to their events and activities, though access is still restricted for external parties seeking to host activities at ACC. The college’s Appian Health Screening App remains available to everyone who visits campus. This continues to be a good way to check your own health before coming to class or work.
- If you are experiencing COVID-19-related symptoms, please get a COVID-19 test as soon as possible before returning to an ACC facility. Testing is now widely available. To find testing locations near you, click this link.
- If you test positive, please report it on the ACC self-reporting tool located here.
- ACC continues to welcome face masks on campus. Per CDC guidelines, face masks remain a good way to protect yourself from COVID-19.
- The college asks that we all continue to respect the personal space of others. We are encouraging 3 feet of social distancing.
- Please be sure to carry your student, faculty, or staff ID badge at all times while on campus.
Because of the everchanging situation, please go to ACC’s Covid website at https://www.austincc.edu/coronavirus?ref=audiencemenu for the latest updates and guidance.
Statement on Academic Integrity
Austin Community College values academic integrity in the educational process. Acts of academic dishonesty/misconduct undermine the learning process, present a disadvantage to students who earn credit honestly, and subvert the academic mission of the institution. The potential consequences of fraudulent credentials raise additional concerns for individuals and communities beyond campus who rely on institutions of higher learning to certify students' academic achievements, and expect to benefit from the claimed knowledge and skills of their graduates. Students must follow all instructions given by faculty or designated college representatives when taking examinations, placement assessments, tests, quizzes, and evaluations. Actions constituting scholastic dishonesty include, but are not limited to, plagiarism, cheating, fabrication, collusion, falsifying documents, or the inappropriate use of the college’s information technology resources. Further information is available at:
https://www.austincc.edu/about-acc/academic-integrity-and-disciplinary-process
Student Rights & Responsibilities
Students at ACC have the same rights and protections under the Constitution of the United States. These rights include freedom of speech, peaceful assembly, petition and association. As members of the community, students have the right to express their own views, but must also take responsibility for according the same rights to others and not interfere or disrupt the learning environment. Students are entitled to fair treatment, are expected to act consistently with the values of the college, and obey local, state, and federal laws. www.austincc.edu/srr
As a student of Austin Community College you are expected to abide by the Student Standards of Conduct. https://www.austincc.edu/students/students-rights-and-responsibilities/student-standards-of-conduct
Senate Bill 212 and Title IX Reporting Requirements
Under Senate Bill 212 (SB 212), the faculty and all College employees are required to report any information concerning incidents of sexual harassment, sexual assault, dating violence, and stalking committed by or against an ACC student or employee. Federal Title IX law and College policy also require reporting incidents of sex- and gender-based discrimination and sexual misconduct. This means faculty and non-clinical counseling staff cannot keep confidential information about any such incidents that you share with them.
If you would like to talk with someone confidentiality, please contact the District Clinical Counseling Team who can connect you with a clinical counselor on any ACC campus: (512) 223-2616, or to schedule online: https://www.austincc.edu/students/counseling.
While students are not required to report, they are encouraged to contact the Compliance Office for resources and options: Charlene Buckley, District Title IX Officer, (512) 223-7964; compliance@austincc.edu.
If a student makes a report to a faculty member, the faculty member will contact the District Title IX Officer for follow-up.
Student Complaints
A defined process applies to complaints about an instructor or other college employee. You are encouraged to discuss concerns and complaints with college personnel and should expect a timely and appropriate response. When possible, students should first address their concerns through informal conferences with those immediately involved; formal due process is available when informal resolution cannot be achieved.
Student complaints may include (but are not limited to) issues regarding classroom instruction, college services and offices on the basis of actual or perceived race, color, national origin, religion, age, gender, gender identity, sexual orientation, political affiliation, or disability.
Further information about the complaints process, including the form used to submit complaints, is available at: http://www.austincc.edu/students/students-rights-and-responsibilities/student-complaint-procedures
Statement on Privacy
The Family Educational Rights and Privacy Act (FERPA) protects confidentiality of students’ educational records. Grades cannot be provided by faculty over the phone, by e-mail, or to a fellow student.
Recording Policy
To ensure compliance with the Family Education Rights and Privacy Act (FERPA), student recording of class lectures or other activities is generally prohibited without the explicit written permission of the instructor and notification of other students enrolled in the class section. Exceptions are made for approved accommodations under the Americans with Disabilities Act.
Recording of lectures and other class activities may be made by faculty to facilitate instruction, especially for classes taught remotely through Blackboard Collaborate or another platform. Participation in such activities implies consent for the student to be recorded during the instructional activity. Such recordings are intended for educational and academic purposes only.
Safety Statement
Health and safety are of paramount importance in classrooms, laboratories, and field activities. Students are expected to learn and comply with ACC environmental, health and safety procedures and agree to follow ACC safety policies. Emergency Procedures posters and Campus Safety Plans are posted in each classroom and should be reviewed at the beginning of each semester. All incidents (injuries/illness/fire/property damage/near miss) should be immediately reported to the course instructor. Additional information about safety procedures and how to sign up to be notified in case of an emergency can be found at http://www.austincc.edu/emergency
Everyone is expected to conduct themselves professionally with respect and courtesy to all. Anyone who thoughtlessly or intentionally jeopardizes the health or safety of another individual may be immediately dismissed from the day’s activity and will be referred to the Dean of Student Services for disciplinary action.
In the event of disruption of normal classroom activities due to an emergency situation or an outbreak of illness, the format for this course may be modified to enable completion of the course. In that event, students will be provided an addendum to the class syllabus that will supersede the original version.
Campus Carry
The Austin Community College District concealed handgun policy ensures compliance with Section 411.2031 of the Texas Government Code (also known as the Campus Carry Law), while maintaining ACC’s commitment to provide a safe environment for its students, faculty, staff, and visitors. Beginning August 1, 2017, individuals who are licensed to carry (LTC) may do so on campus premises except in locations and at activities prohibited by state or federal law, or the college’s concealed handgun policy. In addition, concealed weapons are not allowed on ACC-sponsored field trips where the school owns or has chartered or leased vehicles for transportation.
It is the responsibility of license holders to conceal their handguns at all times. Persons who see a handgun on campus are asked to contact the ACC Police Department by dialing 222 from a campus phone or 512-223-7999. Please refer to the concealed handgun policy online at http://austincc.edu/campuscarry.
Discrimination Prohibited
The College seeks to maintain an educational environment free from any form of discrimination or harassment including but not limited to discrimination or harassment on the basis of race, color, national origin, religion, age, sex, gender, sexual orientation, gender identity, or disability.
Faculty at the College are required to report concerns regarding sexual misconduct (including all forms of sexual harassment and sex and gender-based discrimination) to the Manager of Title IX/Title VI/ADA Compliance. Licensed clinical counselors are available across the District and serve as confidential resources for students.
Additional information about Title VI, Title IX, and ADA compliance can be found in the ACC Compliance Resource Guide available at: https://drive.google.com/file/d/1o55xINAWNvTYgI-fs-JbDyuaMFDNvAjz/view
Use of ACC email
All College e-mail communication to students will be sent solely to the student’s ACCmail account, with the expectation that such communications will be read in a timely fashion. ACC will send important information and will notify students of any college- related emergencies using this account. Students should only expect to receive email communication from their instructor using this account. Likewise, students should use their ACCmail account when communicating with instructors and staff.
Information about ACC email accounts, including instructions for accessing it, are available at: http://www.austincc.edu/help/accmail/questions-and-answers.
Use of the Testing Center
The Testing Centers will allow only limited in person testing and testing time will be limited to the standard class time, typically one and one-half hours. Specifically, only the following will be allowed in the Testing Centers:
- Student Accessibility Services (SAS) Testing: All approved SAS testing
- Assessments Tests: Institutionally approved assessment tests (e.g., TSIA or TABE)
- Placement Tests: Placement tests (e.g., ALEKS)
- Make-Up Exams (for students who missed the original test): Make-up testing is available for all lecture courses but will be limited to no more than 25% of students enrolled in each section for each of four tests
- Programs incorporating industry certification exams: Such programs (e.g., Microsoft, Adobe, etc.) may utilize the ACC Business Assessment Center for the industry certification exams (BACT) at HLC or RRC
STUDENT SUPPORT SERVICES
The success of our students is paramount, and ACC offers a variety of support services to help, as well as providing numerous opportunities for community engagement and personal growth.
Student Support
ACC strives to provide exemplary support to its students and offers a broad variety of opportunities and services. Information on these campus services and resources is available at http://www.austincc.edu/students. A comprehensive array of student support services is available online at:
https://www.austincc.edu/coronavirus/remote-student-support
Student Accessibility Services
Austin Community College (ACC) is committed to providing a supportive, accessible, and inclusive learning environment for all students. Each campus offers support services for students with documented disabilities. Students with disabilities who need classroom, academic or other accommodations must request them through Student Accessibility Services (SAS).
Students are encouraged to request accommodations when they register for courses or at least three weeks before the start of each semester they are enrolled, otherwise the provision of accommodations may be delayed. Students who have received approval for accommodations from SAS for this course must provide the instructor with the legal document titled “Notice of Approved Accommodations (NAA)” from SAS.
Until the instructor receives the NAA from the student accommodations should not be provided. Once the NAA is received, accommodations must be provided. Accommodations are not retroactive, so it is in the student’s best interest to deliver the NAA on the first day of class.
Please contact SAS@austincc.edu for more information.
Academic Support
ACC offers academic support services on all of its campuses. These services, which include online tutoring, academic coaching, and supplemental instruction, are free to enrolled ACC students. Tutors are available in a variety of subjects ranging from accounting to pharmacology. Students may receive these services on both a drop-in and referral basis.
An online tutor request can be made here:
https://de.austincc.edu/bbsupport/online-tutoring-request/
Additional tutoring information can be found here: austincc.edu/onlinetutoring
Library Services
ACC Library Services offers both in-person and extensive online services, with research and assignment assistance available in-person during limited hours of service. Although all college services are subject to change, plans include ACC students signing up for study space and use of computers at open libraries, extensive online instruction in classes, online reference assistance 24/7 and reference with ACC faculty librarians. In addition, currently enrolled students, faculty and staff can access Library Services online (also 24/7) via the ACC Library website and by using their ACCeID to access all online materials (ebooks, articles from library databases, and streaming videos). ACC Libraries offer these services in numerous ways such as: "Get Help from a Faculty Librarian: the 24/7 Ask a Librarian chat service," an online form for in-depth research Q and A sessions, one-on-one video appointments, email, and phone (voicemail is monitored regularly).
- Library Website: http://library.austincc.edu
- Library Information & Services during COVID-19: https://researchguides.austincc.edu/LSinfoCOVID19
- Ask a Librarian 24/7 chat and form: https://library.austincc.edu/help/ask.php
- Library Hours of Operation by Location: https://library.austincc.edu/loc/
- Email: library@austincc.edu
Student Organizations
ACC has over seventy student organizations, offering a variety of cultural, academic, vocational, and social opportunities. They provide a chance to meet with other students who have the same interests, engage in service-learning, participate in intramural sports, gain valuable field experience related to career goals, and much else. Student Life coordinates many of these activities, and additional information is available at http://sites.austincc.edu/sl/.
Personal Support
Resources to support students are available at every campus. To learn more, ask your professor or visit the campus Support Center. All resources and services are free and confidential. Some examples include, among others:
- Food resources including community pantries and bank drives can be found here:
https://www.centraltexasfoodbank.org/food-assistance/get-food-now
- Assistance with childcare or utility bills is available at any campus Support Center: http://www.austincc.edu/students/support-center.
- The Student Emergency Fund can help with unexpected expenses that may cause you to withdraw from one or more classes: http://www.austincc.edu/SEF.
- Help with budgeting for college and family life is available through the Student Money Management Office: http://sites.austincc.edu/money/.
- A full listing of services for student parents is available at: https://www.austincc.edu/students/child-care
- The CARES Act Student Aid will help eligible students pay expenses related to COVID-19:
https://www.austincc.edu/coronavirus/cares-act-student-aid.
Mental health counseling services are available throughout the ACC Student Services District to address personal and or mental health concerns: http://www.austincc.edu/students/counseling .
If you are struggling with a mental health or personal crisis, call one of the following numbers to connect with resources for help. However, if you are afraid that you might hurt yourself or someone else, call 911 immediately.
Free Crisis Hotline Numbers:
- Austin / Travis County 24-hour Crisis & Suicide hotline: 512-472-HELP (4357)
- The Williamson County 24-hour Crisis hotline: 1-800-841-1255
- Bastrop County Family Crisis Center hotline: 1-888-311-7755
- Hays County 24 Hour Crisis Hotline: 1-877-466-0660
- National Suicide Prevention Lifeline: 988 or 1-800-273-TALK (8255)
- Crisis Text Line: Text “home” to 741741
- Substance Abuse and Mental Health Services Administration (SAMHSA) National Helpline: 1-800-662-HELP (4357)
- National Alliance on Mental Illness (NAMI) Helpline:1-800-950-NAMI (6264)
Student Technology Support Services
Austin Community College provides free, secure drive-up WiFi to students and employees in the parking lots of all campus locations. WiFi can be accessed seven days a week, 7 am to 11 pm.
Students who do not have the necessary technology to complete their ACC courses can request to borrow devices from Student Technology Services. Available devices include iPads, webcams, headsets, calculators, etc. Students must be registered for a credit course, Adult Education, or Continuing Education course to be eligible.
Student Technology Services offers phone, live-chat, and email-based technical support for students and can provide support on topics such as password resets, accessing or using Blackboard, access to technology, etc. To view hours of operation and ways to request support, visit http://www.austincc.edu/sts.
Office Hours
M W 12:30 PM - 1:45 PM RGC 1.1333.03
NOTE priority given to CHEM 2323/2123 studentsT Th 11:00 AM - 12:15 PM RGC 1333.03
NOTE Priority given to TTh CHEM 1311/1111 students.M W 3:30 PM - 4:00 PM RGC 1.1333.03
NOTE Priority given to MW CHEM 1311 studentsPublished: 08/16/2022 09:53:25