• Organic Chemistry Lab Manual Answers
• Organic Chemistry Lab Manual
• Organic Chemistry Lab Exam
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Many common laboratory instruments and equipment are associated with physical or chemical hazards. Each researcher is responsible for using all laboratory equipment in a safe manner. The following simple guidelines for operating common laboratory equipment have been compiled here for reference.

Experimental Organic Chemistry: Laboratory Manual is designed as a primer to initiate students in Organic Chemistry laboratory work. Organic Chemistry is an eminently experimental science that is. Aug 09, 2019  I was fortunate to join the Laboratory Research Experience program (LRE), organized by the University of California, Berkeley. The daily laboratory work and the interaction with top graduate students enhanced my working knowledge about reticular chemistry and confirmed to me that this is the area I want to work in during my Ph.D. Mar 07, 2019  manual hamzaproductscom book pdf free download link or read online here in pdf read online organic chemistry lab manual hamzaproductscom book pdf free download link book now all books are in clear copy here, and all files are secure so don't worry about it. In particular, she coordinates the 30-50 Graduate Student Instructors in the course, and is involved in writing the laboratory manual, exams and problem sets. Organic Chemistry Laboratory Chem 300. Under the direction of Prof. Jonathan Ellman. She is currently a lecturer in the College of Chemistry at UC Berkeley, a position she has. Students should have completed a college-level Organic Chemistry I lecture and laboratory course for science majors with a C or better. It is recommended that students have completed a college-level Organic Chemistry II lecture course for science majors with a C or better or are taking it concurrently.

Drying Ovens

(other than vacuum drying ovens)

1. Drying ovens should not be used to dry any organic compounds or glassware that has been rinsed with organic compounds. These ovens rarely have any provisions to vent the interior, thus all evaporating substances go into the laboratory environment. 2. Avoid measuring the inside temperature of an oven with a mercury thermometer. Accidental breakage of the thermometer will cause a serious hazard.

Heating Devices

The actual heating element of any heating device should be enclosed in a glass, ceramic or metal case. Heating devices (such as heating mantles) require auto-transformers to control the temperature. Such auto-transformers must be wired according to code and have a two-pole switch, a three-prong plug, and a power overload device. Unattended heating devices must be protected with overload circuitry and with a temperature-sensing device that will turn the power off in the event of overheating. When cooling water is used in connection with heating (as in the condenser of a solvent still), an automatic device to turn off the power when water flow is interrupted is absolutely necessary.

Hot Plates

1. Hot plates with heating elements that are not totally enclosed must be discarded.
2. Hot plates with temperature control devices must be spark-free.

Heating Mantles

1. When used with auto-transformers (variac or powerstat), make certain that the auto transformer is properly wired.
2. The temperature of heating mantles can be effectively controlled with solid state controllers (approximate cost, $100) with a feedback sensor sensing the temperature of the heated liquid.
3. If a solid state controller is used, make sure that the feedback device is fail-safe (i.e. if the circuit opens the power is turned off).
4. Always support the heating mantle with a ring so as to allow air circulation around it to prevent overheating of the exterior of the mantel.
5. Never support a heating mantle with any combustible material.

Oil Baths

1. The temperature of electrically heated oil baths must be carefully controlled so as not to exceed the flash point of the oil (check the MSDS for the flash point).
2. Oil baths must be protected with temperature sensing devices to turn off the power in the event of overheating.
3. Bare wires should never be used to heat oil baths.
4. Heated oil should never be contained in breakable containers; containers should be mounted on solid, flat surfaces to avoid spilling.
5. Insure that water or volatile materials do not come into contact with oil baths. Oil baths are used for temperatures in excess of 100 C--a hot oil explosion will result if these materials come into contact with the hot oil.

Fused Salt Baths

Great care should be taken to understand all the properties of the salts used in such baths, especially when mixtures of salts are used. Because of the high operating temperatures of these baths, salts have been known to react and cause catastrophic explosions.

Heat Guns

The heating element of most heat guns consists of exposed wire which typically becomes red hot during use. In addition, the on-off switch on a heating gun is not spark-free. Therefore, heat guns must never be used near flammable liquids.

The power cords on heating guns often fray near the handle. Heat guns must be continually inspected for this problem and repaired immediately if frayed.

Refrigerators

Because there is never a satisfactory arrangement for continuous venting of the interior of a refrigerator, material escaping from stored containers will accumulate and could form a flammable, explosive, reactive, or toxic mixture. Additional information regarding laboratory refrigerators is provided in a Campus Fact Sheet in Section 7 of the College of Chemistry Health and Safety Manual.

1. Flammable liquids may only be stored in UL listed Flammable Storage Refrigerators. In house 'de-sparking' of conventional refrigerators for use with flammable materials is prohibited by the State Fire Marshal.
2. Laboratory refrigerators must be labeled as to the compounds that can be stored inside.
3. Laboratory refrigerators must be provided with a temperature alarm to enunciate failure of cooling or must be checked regularly to assure that they are functioning properly.
4. If the material in a refrigerator will produce hazards if the refrigerator warms, it should be listed on the College 'Critical Utility List' (contact College Physical Plant 3-4220 for more information).
5. Uncapped materials should never be stored in a refrigerator. Containers of chemicals should be capped in such a way as to achieve a seal that is both vapor tight and unlikely to permit a spill if the container is tipped over.

Stirring and Mixing Devices

Stirring and mixing devices are used commonly to maintain uniform temperature in a reaction mixture. Failure of such a device to operate can cause excessive local heating resulting in an uncontrolled reaction that could cause an explosion or fire. When the temperature control of a reaction is critical, interlocking the function of the stirrer with the heating mechanism is a prudent procedure. Stirring devices are usually operated by motors; such motors must be spark-free. For stirring devices that are used in a fume hood, provisions should be made to turn off such devices from the outside of the hood.

Mechanical Vacuum Pumps

Distillation or concentration operations that involve significant quantities of organic compounds are usually carried out with aspirators. When vacuum pumps are used for such operations, they are usually trapped. Volatile compounds inevitably go through the traps and condense in the pump oil. Even though pumps are available with 'ballast valves' (valves that allow a small amount of air to enter the pump through the first stage to sweep volatile compounds), eventually the oil degrades and the performance of the pump is reduced. Mechanical vacuum pumps require frequent oil changes in order to maintain their performance.

Pumps must be placed in a tray to avoid oil spilling on the floor where it would present a serious slipping hazard. Pumps should be maintained in good working order with frequent oil changes; if they are belt driven, the belts must be inspected often. The pump exhaust must be connected to a local exhaust system. Belt-driven pumps must have belt guards that cover the entire belt and pulley assembly.

Vacuum Systems

Rough Pumps

These pumps are motor-driven and oil sealed; occasionally the motor and pump are coupled with a belt.

1. The pump must be trapped to delay the contamination of the pump oil.
2. The pump oil must be compatible with the material that is being pumped--Oxidizers such as
O2, NO2, CO and F2 can react violently with hydrocarbon oils.
3. The motor must be spark-free and protected from overload.

Diffusion Pumps

Most common diffusion pumps use oil as a pumping fluid. Some old types of diffusion pumps use mercury and are made of glass. The use of such pumps must be discontinued unless there is a compelling reason for their use. In such a case, these pumps must be used with local
ventilation.

The cooling mechanism of the diffusion pumps must be interlocked with their heating mechanism so that in the event that the cooling mechanism fails, the power to the heater will be interrupted. Overheated diffusion pump oil at a minimum will react and decompose; and in
some cases could react with the material that is pumped causing a fire or explosion.

Cold Traps

Cold traps are used to freeze and trap volatile compounds so that they are prevented from entering and contaminating the oil of a pumping system.

1. The common practice of using acetone-dry ice as a coolant should be avoided.
2. Isopropanol or ethanol work as well as acetone and are less toxic, less flammable and less prone to foaming.
3. After completing an operation in which a trap has been used, the system must be vented. Venting is important because volatile substances that have collected in the trap will vaporize when the coolant is exhausted and cause pressure build-up that can result in exploding the
apparatus.
4. When cold traps with liquid nitrogen are used, care must be taken not to open the vacuum system to the atmosphere when the trap is still immersed in liquid nitrogen because oxygen rich air will condense in the trap and might react violently with organic compounds
condensed in the trap.

Rotovaps

1. Water aspirators must never be used to pump volatile organics.
2. To avoid damage to the pump and to avoid release of compounds into the lab air, dry ice
traps must be used when pumping volatile organics.

High Pressure Equipment

The design and use of high pressure equipment must be made with great care. Compressed gases store large amounts of energy which can cause a great deal of damage when released.

Safety Factor

Pressure vessels must be designed with a safety factor of 5. This means that the vessel must be designed to hold five times the working pressure without rupturing.

Material

The material used must be compatible with the material the vessel is designed to contain to avoid corrosion. The operating temperature of the vessel must also be considered.

Testing

Pressure vessels must be tested at the operating temperature and at 130% of the working pressure without exhibiting 0.2% permanent deformity. The design working pressure must be permanently stamped on the vessel. A record of the test must be made and kept.

Safety Devices

The vessel must be equipped with at least one tamper-proof pressure relief device to relieve at 110% of the working pressure. When the vessel contains toxic gases, it must be stored in a ventilated enclosure and the relief device must be discharged into the local exhaust system
(see Campus Fact Sheet on the Toxic Gas Program).

Pressure Gages

Pressure vessels must be equipped with appropriate gages so that the operator is aware of the conditions inside the vessel.

Glass Vessels

The use of glassware for pressure work should be avoided. If it is to be used as such, tests must be conducted to determine design parameter. Shielding should always be provided for glass equipment under vacuum or pressure.

Syllabus Sections

Publish Date

08/27/2012 14:36:13

Organic Chemistry I -- Lab

CHEM-2123

Fall 2012
08/27/2012 - 12/16/2012

Course Information

Section 002
Laboratory
T 13:30 - 16:10
RRC2 2307.00
Shawn Amorde

Section 102
Laboratory
Th 13:30 - 16:10
RRC2 2307.00
Shawn Amorde

Office Hours

• M W
  10:30am - 12:15pm
  
• M W
  7:45am - 8:30am
  

Course Requirements

CHEM 2323 - Organic Chemistry I

Course Syllabus

Fall 2012

Section numbers: 002, 102

Synonyms: 15951, 15952, 11823, 11810

Instructor: Dr. Shawn Amorde

Office Number: RRC 2308.11

Phone Number: 223-0204

e-mail address: samorde@austincc.edu

web page: http://www.austincc.edu/samorde

Office Hours: MW 7:45am-8:30am and 10:30am-12:15pm

COURSE DESCRIPTION

An introduction to the chemistry of carbon compounds. Both aliphatic and aromatic compounds will be studied; focusing on molecular orbital theory, stereochemistry, reactions, and mechanisms. Prerequisites: CHEM 1312 or equivalent.

RECOMMENDED TEXTS/MATERIALS

Lecture: 'Organic Chemistry', 10^th ed., Solomons

Lab: 'Operational Organic Chemistry: A Problem-Solving Approach to the Laboratory Course' 4^th ed., Lehman

Students must have access to ACC’s Blackboard, this requires an ACC EID and login password. Lecture notes, lab notes, announcements, syllabus, and other course materials will be available to students on Blackboard and my website www.austincc.edu/samorde .

OFFICE HOURS

MW 7:45am-8:30am and 10:30am-12:15pm

Students with questions are welcome to attend my office hours. Other times during the day I am in class, grading, or preparing for class. Please attend office hours, not these other times.

CALCULATOR

You will need a scientific calculator for lab activities only.

MOLECULAR MODELS

Organic Chemistry Lab Manual Answers

The use of molecular models is suggested and extremely helpful, but not required. Also, we will be using a freeware chemical drawing program called ChemSketch from www.ACDLabs.com in class and you may want to download to your personal PC to aide in homework.

INSTRUCTIONAL METHODOLOGY

This course consists of a lecture section.

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.

COMMON COURSE OBJECTIVES

These can be found at: http://www.austincc.edu/chem/curriculum/index.htm

COURSE EVALUATION/GRADING

Lecture

The lecture portion constitutes 100% of your grade.

Homework: Recommended homework will be assigned to each unit and available on blackboard in the form of lecture notes and additional practice homework. Homework should be done before each corresponding unit exam. Exam questions will come from the homework as well as lecture notes, so it is suggested you work all the assigned problems. We will be working some of these problems in class during the lectures and concentrating on homework problems during the exam reviews. A student solutions manual is available with your text book if you prefer additional problems for practice. Homework packets are posted on blackboard for each unit at the beginning of each unit. They will be posted as a series to correspond to each lecture period.

Bonus Questions: The series of homework questions (posted on blackboard) for each unit assembled together as a packet will be due on the day of the review for subsequent exams; these packets will be worth 20 points each and will total the amount of an additional exam. All problems should be submitted, however not all problems will be graded. You may substitute this overall grade for the lowest score on one of the regular exams, if you have completed all the bonus questions and taken all of the exams.Late bonus questions will not be accepted for credit.

Videos, Notebooks, and Text Readings: Recommended readings or videos will be assigned each week and are due before the start of class each Monday. The videos and readings are a great way to keep up with the material. The lectures will make more sense if the recommended videos and readings are completed before class!! These are not for credit, but strictly for you benefit. Notebooks may be reviewed at the end of the semester for consideration while rounding final grade.

Exams: There will be five regular exams. All exams will be given in the testing center during the tentative dates shown below. Grades may be curved at the discretion of the instructor. There will be a 10-point penalty per day on exams given, for whatever reason, after the set exam dates. There are no late exams without prior approval, or a doctor’s note. A comprehensive final will be given on the last day of class, you may substitute your bonus questions score for the final if you have completed all of the bonus questions and are happy with your grade.

Final Lecture Grade: Each regular exam is worth 100 points, the final is worth 200 points. There are a total of 800 possible points, but only 700 will be considered after one test grade is dropped if you complete the bonus questions. This total point score will comprise 100% of the course grade.

LECTURE OUTLINE/CALENDAR

*Test dates are tentative and will be confirmed in class

*Please see attached and posted comprehensive Unit Summary and Calendar

FINAL EVALUATION:

Grading Scale for the course: A = 90-100%, B = 80-89%, C = 70-79%, D = 60-69%

Laboratory

Graded materials consist of laboratory notebook including lab reports for each lab performed. Attendance is required for at least 60% of the course or a failing grade will result.

There will be a comprehensive lab final on the last day of class worth 20% of your grade. You will be allowed the use of your lab notebook on the final.

Your final grade will be based on the results of 8 out of 9 of your best labs for 80% of your final grade. There will be no makeup labs.

If you miss a lab, you may miss some discussion/handouts about the next period’s experiment. You are responsible for getting this information from the instructor or another student before the next lab. This information is available on Blackboard and students should check it every week.

All students perform their own experiments. There will be no lab partners unless directed otherwise by the instructor.

There are a total of 10 (5 full, 5 mini) lab write-ups due this semester. Each write-up is due the week after completion of the entire lab. A list of the lab write-ups are as follows;

1. Safety Assignment

2. Lab Techniques Assignment

3. TLC, Lab 1, from handout, or mini lab 11 from text.

4. Experiment 2 and 3 are combined into one report.

5. Experiment 8

6. Experiment 6 and Gas Chromatography are combined into one report.

7. Experiment 10 and Infrared Spectroscopy are combined into one report.

8. Experiment 23 and melting point are combined into one report.

9. Mini Lab 16

10. Mini Lab 21

ACC does not provide safety goggles for the lab. The student must buy goggles prior to performing the first experiment. ANSI-approved goggles are stamped with Z87.

LAB OUTLINE/CALENDER

See Attached Schedule

CHEM 2123 Organic Chemistry I (Tuesday, Thursday)

Laboratory Schedule RRC

FALL 2012

ALL STUDENTS MUST PURCHASE THEIR OWN SAFETY GOGGLES FOR USE WHILE IN LAB.

Course Policies

Attendance/Class Participation

Regular and punctual class and laboratory attendance is expected of all students. If attendance or compliance with other course policies is unsatisfactory, the instructor may withdraw students from the class.

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 decide to withdraw from the class. The instructor does, however, reserve the right to drop a student should he or she feel it is necessary. 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.

Organic Chemistry Lab Manual

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.

Incompletes

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. 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.

A student attending ACC assumes responsibility for conduct compatible with the mission of the college as an educational institution. Students have the responsibility to submit coursework that is the result of their own thought, research, or self-expression. 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, and falsifying documents. Penalties for scholastic dishonesty will depend upon the nature of the violation and may range from lowering a grade on one assignment to an “F” in the course and/or expulsion from the college. See the Student Standards of Conduct and Disciplinary Process and other policies at http://www.austincc.edu/current/needtoknow

Each ACC campus offers support services for students with documented disabilities. Students with disabilities who need classroom, academic or other accommodations must request them through the Office for Students with Disabilities (OSD). Students are encouraged to request accommodations when they register for courses or at least three weeks before the start of the semester, otherwise the provision of accommodations may be delayed.

Students who have received approval for accommodations from OSD for this course must provide the instructor with the ‘Notice of Approved Accommodations’ from OSD before accommodations will be provided. Arrangements for academic accommodations can only be made after the instructor receives the ‘Notice of Approved Accommodations’ from the student.

Students with approved accommodations are encouraged to submit the ‘Notice of Approved Accommodations’ to the instructor at the beginning of the semester because a reasonable amount of time may be needed to prepare and arrange for the accommodations.

Additional information about the Office for Students with Disabilities is available athttp://www.austincc.edu/support/osd/

Safety Statement

Austin Community College is committed to providing a safe and healthy environment for study and work. You are expected to learn and comply with ACC environmental, health and safety procedures and agree to follow ACC safety policies. Additional information on these can be found at http://www.austincc.edu/ehs. Because some health and safety circumstances are beyond our control, we ask that you become familiar with the Emergency Procedures poster and Campus Safety Plan map in each classroom. Additional information about emergency procedures and how to sign up for ACC Emergency Alerts to be notified in the event of a serious emergency can be found at http://www.austincc.edu/emergency/.

Please note, you are expected to conduct yourself professionally with respect and courtesy to all. Anyone who thoughtlessly or intentionally jeopardizes the health or safety of another individual will be dismissed from the day’s activity, may be withdrawn from the class, and/or barred from attending future activities.

You are expected to conduct yourself professionally with respect and courtesy to all. Anyone who thoughtlessly or intentionally jeopardizes the health or safety of another individual will be immediately dismissed from the day’s activity, may be withdrawn from the class, and/or barred from attending future activities.

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 you 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. Instructions for activating an ACCmail account can be found at http://www.austincc.edu/accmail/index.php.

Organic Chemistry Lab Exam

Testing Center Policy

Under certain circumstances, an instructor may have students take an examination in a testing center. Students using the Academic Testing Center must govern themselves according to the Student Guide for Use of ACC Testing Centers and should read the entire guide before going to take the exam. To request an exam, one must have:

• Course Abbreviation (e.g., ENGL)
• Course Number (e.g.,1301)
• Course Synonym (e.g., 10123)
• Course Section (e.g., 005)
• Instructor's Name

Do NOT bring cell phones to the Testing Center. Having your cell phone in the testing room, regardless of whether it is on or off, will revoke your testing privileges for the remainder of the semester. ACC Testing Center policies can be found at http://www.austincc.edu/testctr/

Student And Instructional Services

ACC strives to provide exemplary support to its students and offers a broad variety of opportunities and services. Information on these services and support systems is available at: http://www.austincc.edu/s4/

Links to many student services and other information can be found at: http://www.austincc.edu/current/

ACC Learning Labs provide free tutoring services to all ACC students currently enrolled in the course to be tutored. The tutor schedule for each Learning Lab may be found at: http://www.autincc.edu/tutor/students/tutoring.php

Organic Chemistry Lab Manual Berkeley Download Word

For help setting up your ACCeID, ACC Gmail, or ACC Blackboard, see a Learning Lab Technician at any ACC Learning Lab.