PARADISE VALLEY COMMUNITY COLLEGE

 

 

General Chemistry I

 

CHM151 SYLLABUS

 

 Instructor:   DR. LYNN LALKO      Course Section:  2211
 Meeting Day:  MWF       Meeting Time:   10:30 - 11:20 AM
 Meeting Dates:    SEPTEMBER 3 - DECEMBER 13   Meeting Place:   H101
 Office Hours  Posted on Office Door: G106    
 Office Telephone:  (602) 787-6640   E-mail: lynn.lalko@pvmail.maricopa.edu

 

Prerequisites:

The crucial prerequisite for this course is the 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.  

 

 

Class Attendance:

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.

 

Text:

General Chemistry, 6th Edition: Whitten, Davis, Peck

 

Examinations:

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.

As the semester progresses, exact exam dates will not be assigned. 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 period is finished 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:

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, notetakers 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, B119, or call (602) 787-7240.

Office Hours:

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.

 

Tutoring:

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.

 

Disciplinary Policy:

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.

Summary:

It is your responsibility to:

  1. Attend all classes.
  2. Turn in all review exams. 
  3. Take (and pass) all exams at the scheduled time.
  4. Attend all lab classes and write reports for the appropriate experiments. 
  5. Explain to the instructor in a timely fashion any reasons why the above could not be accomplished.
     

Measurement of Performance:

Your grade will be the result of the average of the following components:

   5 50 minute exams

500

    drop one exam

-100

   1 comprehensive final

200

   5 review exams

100

    Total points:

 700

 

Grading Scale:

 A

= 700 - 630

 B

= 629 - 560

 C

= 559 - 490

D

= 489 = 420

F

= 419 - 0

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

 

Fall 2002 Laboratory Schedule

Chemistry 151

 Wk  Date       Experiment   
 

  M

 T

 W

R

   
 1. 9/9 9/10 9/11 9/5 Video Chemical Reactions 
            Chemical Equations
            Balancing Equating
             
 2. 9/16 9/17 9/18 9/12 #1 Check In/Safety Orientation  
          Handout: The Case of Missing Labels  
             
 3. 9/23 9/24 9/25 9/19 Video Ions in Solution
            Naming Binary Salts
            Variable Oxidation States
            Binary Nonmetals
            Naming Acids
             
 4. 9/30 10/1 10/2 9/26  #6 Determination of the  
           Formula of a Hydrate  
             
 5. 10/7 10/8 10/9 10/3 Video Net Ionic Equations
            Redox Reactions
            Reaction Products
             
 6. 10/14 10/15 10/16 10/10 #9 The Molecular Weight of   
           a Volatile-Liquid  
             
 7. 10/21 10/22 10/23 10/17 Video Pressure
            P-V-T Introduction
             Density
             
 8. 10/28 10/29 10/30 10/24  #23 Determination of Calcium  
           Content in Hard Water  
             
 9. 11/4 11/5 11/6 10/31 Video Gas Molecular Weight
            Air Analysis Introduction
            Air Analysis Experiment 
             
 10. 11/18 11/19 11/20 11/7 #13 Basic of Acid Base Titration  
           
 11. 11/25 11/26 11/27 11/21 Video Acid & Bases
            Acid-Base Reaction
            pH
            pH unknown 
             
 12. 12/2 12/3 12/4 12/5 #17 Measurement pH  
             
 13. 12/9 12/10 12/11 12/12 Check Out */Lab Final  
             
           No Labs the Week of 11/11 - 11/15  

 

 Lab Text: General Chemistry Experiments by Mills & Mitchell
   
  *All lab checkouts must occur on Monday labs, for Tues., for Wed., and Thurs. unless by prior arrangement with the instructor. Otherwise you will forfeit your refundable lab deposit.
   

 

CHEMISTRY 151/152 LECTURE SCORE SHEET 

 Exam I Practice I
 Exam II Practice II
Exam III Practice III
Exam IV Practice IV
Exam V Practice V
(100 points each (20 points each)
 drop lowest score)  

"PVCC" Comprehensive Final

(200 points)

700 - 630 = A
629 - 560 = B
559 - 490 = C
489 - 420 = D
419 - 0 = F

 

 

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

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.

 

PROCEDURES

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.

CHEMICALS

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.

 

REAGENTS

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.

 

LAB POLICY

 
1. You will receive a separate lab schedule. Your lab work will consist of hands-on conventional lab experiments and computer interactive video labs.
2. You are responsible for reading and preparing for the "hands-on" lab experiment before you come into lab.
3 . Every "hands-on" lab period will begin with a random oral pre lab with questions over the theory, procedure and any calculations for that experiment. Each student can expect to be called on at least twice a semester. A student who carefully read that days experiment should be able to answer one question. The second time a student fails to answer a question, he is considered unprepared and unsafe. That student will be disqualified from completing that lab and will receive a grade of zero for that experiment. After a student has answered two questions correctly, answers will accumulate as extra credit. Incorrect answers will result in eventual disqualification for one lab.
4. The instructor will then thoroughly discuss the theory, procedure, calculations and special safety instructions for that experiment.
5. Goggles will be worn at all times without exception whenever any work is performed in the lab. Failure to do so will result in expulsion from that experiment. Continued failure will result in expulsion from the course.
6. Students will at all times behave prudently and safely. Continued unsafe conduct will result in expulsion from the course.
7. The lab report is due at the end of that lab period. No late work will be accepted.
8. A lab safety exam will be given at the beginning of the second lab period. The only passing score is 100%. Students who cannot pass the exam by the start of the third lab cannot attend lab until they pass. You will receive no credit for this test. This test is part of you safety orientation.
9 . The entrance to the computer interactive video lab is at the northeast corner of H-building. Due to the limited number of computers, the computer labs will be divided into two 85 minute periods. Students will choose which 85 minute section they will attend for that semester on the first lab session. For example for a 9:00 am lab, the first session is from 9:00 - 10:25 and the second from 10:25 - 11:50. The computer interactive video labs will occur on alternate weeks. Take notes in a notebook. Record the same information and observations as you would if you were doing a "wet" lab. Taking notes will help you remember what you have just seen. After you have completed the computer lab, return to the main lab where you will take a short quiz over the video lab. 
10. On the last week of the lab, you will check out of your drawers and take a written final over all "wet" or "hands on" labs. This is the only week in which you can check out and get the refundable (breakage) portion of your lab fee.
11. The laboratory grade will be determined as follows:

  Technique/Cleanliness/Safety

  46

  Six "hands on" Experiments

 180

  Six interactive Video Experiments

 102

  Open Book Interactive Video Lab Final

  72

  Closed book "hands-on" Final

 100

  Total

500

"A" 500 - 450 points
"B" 449 - 400 points
"C" 399 - 350 points
"D" 349 - 300 points
"F" 299 - 0 points
   
   

 

*Extra credit for correct pre lab answers 3 points each