PARADISE VALLEY COMMUNITY COLLEGE
General Chemistry II
Completion of CHM151 is required to meet the natural Science requirements. Prerequisites: (CHM130 and CHM130LL or one year high school chemistry with a grade of "C" of better, and completion of Intermediate Algebra (MAT120, 121 or 122) or equivalent. If you have not, mastered this level of mathematics recently, you are at a significant disadvantage and should repair this deficiency before attempting CHM151. Completing high school chemistry is helpful but not necessary. The prerequisite for CHM152 is successful completion of CHM151 and CHM151LL.
Punctual and regular class attendance is expected and important for successful completion of this courses. As a result I will circulate an attendance sheet in class. It is the student's responsibility to locate and sign the sheet. It is in your best interest to use each lecture and lab as learning tools. It is college policy that students will be dropped if they have three unexcused absences in lecture or one in lab. After the 45th class day, to withdraw with a passing grade (W) you must get a drop form from the registrar and have the instructor sign it. If a student stops attending and wants to withdraw, it is the responsibility of the student to withdraw prior to the published guidelines. After the end of the fourteenth week of the semester you may no longer withdraw. Students are responsible for determining exact withdrawal deadlines which are published in the college schedule, and students are responsible for completing any forms and paperwork.
General Chemistry, 6th Edition: Whitten, Davis, Peck
Five fifty minute examinations, five take home (practice) exams and two comprehensive final exams will be given. The subject matter is divided into 5 units. Each unit consists of several chapters. Mastery of each unit is achieved by doing the homework assigned for those chapters, completing the take-home or practice exam (worth 20 points) for those chapters, and completing the in class (closed book) exam (worth 100 points) for those chapters.
ALL EXAMS MUST BE TAKEN DURING THE SCHEDULED CLASS PERIOD. The only exception occurs when a student may take the exam EARLY if that student and the instructor agree on the exam time. Each in-class exam must be recorded on a blue half-sheet 2052 scantron form. Record the exam number on your scantron form in the box provided. Do not write on the exam. Scratch paper will be provided. Your lowest exam grade will be dropped. If you have a legitimate excuse for missing an exam, that exam will be dropped. Notify the instructor within 24 hours of the exam. AN EXAM MISSED WITHOUT A LEGITIMATE EXCUSE WILL BE AVERAGED INTO YOUR GRADE AS A ZERO.
Exact exam dates have not been predetermined.. On the day of the last chapter for a particular unit is covered, the take-home (practice) exam will be given to the class. The next class period will be used for review, particularly of the homework. Problems from the practice exam will not be discussed in class by the instructor. You are encouraged, however, to work with your fellow students on the practice exams. Record the answers on the green half sheet 882 scantron forms. The in-class or major exam for that unit occurs on the next class period (following the review day). On the exam day bring the completed (882 scantron form) practice test. Bring a pencil and a blank 2052 scantron form on which to record the in-class exams answers. All students will use a TI-30 calculator (loaned from the chemistry department) on the exam. After you have completed the exam or after the 55 minutes have passed you will hand in the in-class exam, the blue scantron with the answers for the in-class exam and the green scantron from the practice exam. Keep your practice exam.
On the next class period the green scantron form will be returned to the class. It will show you your score for the practice exam and all correct answers for any questions which you have answered incorrectly. The score for your in-class test will be circled in the margin of the green scantron form. The questions most commonly missed on the in-class exam will be discussed. You may review your in-class exam during office hours. PRACTICE EXAMS WILL NOT BE ACCEPTED AFTER THE EXAM PERIOD. Our class final is worth 200 points and is given during finals week.
Homework for each chapter is included on a separate sheet. It is your responsibility to be prepared and ask questions about the material. The homework consists of questions which are similar to the type of questions which will be on the tests. Keep current with the homework. I will discuss homework problems which the class selects any time after I have covered that material in lecture. The review day before a test is an especially good day to discuss homework. If you do not do the homework and attempt to play "catch -up" on the review exam you will undoubtedly be unhappy with your grade.
Students with Disabilities:
Special Services provides a variety of reasonable support services for students with disabilities such as interpreters, test accommodations, tutors, accessibility, assistance with tape readers, and taped books, note takers and adaptive equipment. Reasonable accommodations are furnished upon request depending on the student's individual needs. If you need assistance or accommodations contact the Special Services office located in the Student/Community Services Center, B120, or call (602) 787-7240.
The instructor will hold a minimum of 5 office hours each week. The instructor encourages every student to come by to discuss the course or problems with the course. You do not have to make an appointment for these 5 office hours. If something is making it difficult for you to achieve the success which you want, please discuss this with the instructor before the problem gets out of control. The instructor also has some time to discuss Chemistry, etc. during the lab period. Appointments at other times are possible. If the instructor is not in his office during office hours, check the door for a notice of his whereabouts. If the office door is open, then the instructor is nearby and will return shortly. You can always leave a voice mail message at the instructor's office extension (602) 787-6640.
Free tutoring is available 4 1/2 days per week at the Learning Support Center. Refer to the PVCC Fall 2002 Schedule for details. The LSC will also help you form study groups.
All students are expected to respect others and act responsibility during the learning experience. Expected student conduct and disciplinary standards can be found in the PVCC Student Handbook.
Campus Computer (Mis) Use:
Theft or misuse of campus computer time or equipment is strictly prohibited. Refer to page C-27, paragraph 15 , of the PVCC Student Handbook. PVCC computers are here for your use to master the courses in which you are enrolled. Other uses are prohibited.
Concurrent Enrollment Students:
If you are attending high school and are enrolled in this class, you must identify yourself to the instructor the first week of class.
Cell Phone and Pager Policy:
All cell phone and pagers must be turned off or put on vibrate mode before entering class or lab. If class or lab is interrupted by a ringing cell phone or phone conversation, the student will be asked to leave that class or lab session to attend to the emergency call. It is expected that the student will not return to that class session. This includes exam sessions. If the student is in an emergency profession and my need to be contacted during class or lab, that student must notify the instructor of the potential interruption prior to the class.
It is your responsibility to:
Measurement of Performance:
Your grade will be the result of the average of the following components:
Homework Chemistry 152
Laboratory Schedule Chemistry 152
Lab Text: General Chemistry Experiments, By Mills & Mitchell
All lab check-outs must occur on 11/18 for Monday labs at your normal lab time unless by prior arrangements with the instructor. Otherwise you will forfeit your refundable lab deposit.
There are no labs the week of 9/2-9/6 and 11/11-11/15/02
CHEMISTRY 151/152 LECTURE SCORE SHEET
"PVCC" Comprehensive Final (200 points)
STANDARD LAB SAFETY PROCEDURES
All chemistry students must recognize that there is potential for danger in all chemistry labs and learn certain basic procedures in order to prevent and/or minimize accidents. Because safety must come first, students will learn and follow correct procedures or they will be expelled from the lab.
The instructor will do what he can to prevent problems, but he requires the cooperation of the students. Naturally labs will not be carried out without a lab instructor being present and only the authorized lab will be performed.
Your number one defense is coming to lab prepared. This means reading the lab assignment prior to coming to lab. Especially note any potential safety problems in a lab and follow the precautions thoroughly. Always read over the First Aid section of the lab which normally involves washing off any chemical that you come into contact with immediately and consulting the instructor about any other measures you need to take.
Dress appropriately for lab. Do not wear your best clothes as you may spill something on yourself. Shorts are not a good idea for the same reason. Protective aprons are available at your request. You must wear shoes. You should remove any dangling or long jewelry, such as bracelets or necklaces, which could catch on objects. Long hair should be tied back.
There is no eating, drinking (even water), or smoking in the lab ever. All personal items which are not needed for the lab should be stored in the areas provided.
Goggles must be worn whenever lab work is in progress, even if your are not doing lab work at that time.
The instructor will go over the location and operation of the safety shower, eye wash, fire extinguisher, fire blanket, and first aid kit the first day lab meets. Remember the location and operation of these items and use them if necessary. The instructor must also be informed of any lab injury.
Cleanliness is important for overall safety and the quality of your lab results will be better if your area and materials are clean. Keep your area neat. It should be clean when you come in and it must be clean when you leave.
SPILLS: Any spilled chemicals or water must be cleaned up immediately by the responsible person. If the material is corrosive or flammable, ask the instructor for assistance. If an acid or base is spilled, neutralize it with solid sodium bicarbonate (baking soda), then dilute with water. Mercury, such as from a broken thermometer, is highly toxic and the instructor must be notified if any mercury is spilled. (Our lab thermometers, however, are alcohol filled.)
WASTE DISPOSAL: Unless otherwise instructed by the instructor, put all chemical wastes in the labeled containers in the hoods. Acids, bases, aqueous solutions and small amount of soluble solids may be flushed down the drain with large quantities of water. All insoluble chemicals and large amounts of soluble solids should be disposed of in the labeled containers in the hoods. Broken glass should be disposed of in the special containers. Keep the sinks clean at all times to prevent overflow.
CLEANING GLASSWARE: To clean glassware scrub it with a sponge, hot water, and soap. Do a final rinse with deionized water.
BEFORE LEAVING LAB: Wipe your area off with a damp towel when you are finished and make sure all glassware and equipment is clean before putting it away. Return any special materials and equipment used. Make sure that the water and gas at your bench if off and that your drawer is locked. Wash your hands.
BALANCES: Keep balances clean. Never weigh a chemical directly on the balance pan; place a piece of paper or other contained on the pan first.
PIPETTING: Never pipette by mouth. Use a rubber bulb.
GLASS TUBING & THERMOMETERS: If a thermometer or piece of glass tubing is to be inserted into a rubber stopper's hole, lubricate the glass with glycerin or water first. Shield the apparatus with toweling. Hold the tubing close to the hole and apply gentle, twisting pressure. Use only fire polished tubing.
HEATING: With test tubes, use a test tube holder and direct the tube away from everyone (yourself included). Never apply direct flame to heavy glassware such as volumetric flasks or thermometers as this will lead to distorted calibrations and may cause. Allow heated glassware to cool before attempting to handle.
You must be cautious with chemicals. The lab manual notes particularly dangerous chemicals, as will the instructor. Never taste a chemical or solution. If you need to smell a chemical, fan some of the vapors toward you and smell. Anything in enough quantity or strength is dangerous.
Wash off any chemicals with soap and lots of water. If you have a great deal of a chemical on you, use the safety shower. If any chemical comes into contact with the eyes, use the eye wash immediately and notify the instructor. Always wash your hands before leaving lab to remove any chemicals.
Never remove chemicals from the lab.
When diluting acids always slowly pour the acid into the water while stirring the solution.
For all experiments with poisonous or noxious gases or vapors, use the hood.
Never use an open flame and flammable liquids at the same time. Flammable liquids should be used under the hood. Always check that there are no open flames before using flammable liquids. Assume that only water and aqueous solutions are non-flammable.
Normally, the reagents for the experiment will be in small dropper bottles on your lab bench. Read the label carefully. If in doubt, check! Do not take large reagent bottles to your area; use a beaker or test tube to make the necessary amounts of reagent.
Do not use dirty spatulas, pipettes, droppers, etc, in the reagent bottle. It is important that the reagents not be contaminated. If you are going to pour reagent out of a stoppered bottle, hold the stopper between two fingers of the hand with the bottle in it and pour. Never place the stopper on the table or switch stoppers on bottles. If you are trying to get a solid out of a regent bottle, rotate it while pouring to control the flow. Do not tap or pound on the bottle. If your spill any reagent on the bottle or in the area, clean it up immediately.