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Cobourg District Collegiate Institute West Science www2.kpr.edu.on.ca/cdciw/science/index.htm Lab Manual Mr Walkau CHEMISTRY 2009 Grade 12 Booklet LAB
C o b o u r g D i s t r i c t C o l l e g i a t e I n s t i t u t e W e s t S c i e n c e
w w w 2 . k p r . e d u . o n . c a / c d c i w / s c i e n c e / i n d e x . h t m
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Mr Walkau
CHEMISTRY 2009
Grade 12
Booklet
LAB
Chemistry Lab Binder
Helping you keep your chemistry labs organized
You are to keep your chemistry lab binders organized during
the semester.
Once you get a marked lab report back, put it into your lab binder right away.
Lab binders will be collected at the end of the semester and will be evaluated for completeness and organization. Missing labs and labs that are in another student’s lab binder must be indicated as such in your Table of Contents.
Grade 11 Chemistry
Labs
names course code
teacher
Table of Contents
Group Labs Section
Solo Labs Section Date Lab Title pg #
Chemistry Lab Equipment
Chemistry Lab Equipment
Chemistry Lab Jobs
RECORDER: This person records all data and observations and distributes them to all members in the lab group.
EQUIPMENT MANAGER This person is responsible for obtaining all necessary lab equipment (hardware and chemicals), cleaning up equipment and putting it away.
EXPERIMENTER This person set up all lab equipment and performs the experiment. (all weighing, burning, re-weighing, etc.) They are chiefly responsible for making sure that all equipment is put away properly and safely. All glassware is to be cleaned before being put away.
TIMER & MOTIVATOR This person keeps lab & people on track in order to complete the lab on time. This person also ensures that data is passed on to members who might be away during the day of the experiment.
Groups in which there are less than 4 people will be required to redistribute the lab jobs in order to complete
the lab on time.
If you are away contact your lab partners to get caught up.
Lab partner #1 : name: tel: email: Lab partner #2 : name: tel: email: Lab partner #3 : name: tel: email:
Chemistry Lab Safety
Eyes
If you get chemicals of any kind splashed in your eye can cause damage within seconds.
Safety glasses will protect your eyes from damage.
If you do get chemicals in your eye you are to IMMEDIATELY use the eye wash station either at the front or back of the room. Use the closest one.
When doing experiments you are to wear safety glasses at all times.
If you are not wearing safety glasses during an experiment you will be asked to leave.
Chemistry Lab Safety
Fire
If you catch fire
STOP, DROP AND ROLL
first degree burns second degree burns third degree burns
Tie long hair back when working around open flames.
Do not goof around with fire or you will be asked to leave.
Laboratory Safety Rules In the home, the kitchen and bathroom are the sites of most accidents. The chemical laboratory poses similar hazards and yet it can be no more dangerous than any other classroom if the following safety rules are always observed. Most of them are based on simple common sense. 1) Responsible behavior is essential. The dangers of spilled acids and chemicals and broken
glassware created by thoughtless actions are too great to be tolerated.
2) Wear approved eye protection at all times in the laboratory and in any area where chemicals are
stored or handled. The only exception is when explicit instructions to the contrary are given by your instructor.
3) Eye protection should protect against impact and chemical splashes. Goggles are strongly
recommended and may be required. 4) If you should get a chemical in your eye, wash with flowing water from a sink or fountain for at least
15 min. Get medical attention immediately.
5) Do not wear contact lenses in the laboratory, even with safety goggles. Contact lenses prevent
rinsing chemical splashes from the eye. Vapors in the laboratory (HCl, for example) dissolve in the liquids covering the eye and concentrate behind the lenses. "Soft" lenses are especially bad as chemicals dissolve in the lenses themselves and are released over several hours.
6) Perform no unauthorized experiments. This includes using only the quantities instructed, no more.
Consult your instructor if you have any doubts about the instructions in the laboratory manual. 7) Do not smoke in the laboratory at any time.
8) In case of fire or accident, call the instructor at once. Note the location of fire extinguishers and
safety showers now so that you can use them if needed. Wet towels can be used to smother small fires.
9) In case of a chemical spill on your body or clothing, wash the affected area with large quantities of
running water. Remove clothing which has been wet by chemicals to prevent further reaction with the skin.
10) Report all injuries to your instructor at once. Except for very superficial injuries, you will be required
to get medical treatment for cuts, burns, or fume inhalation. (Your instructor will arrange for transportation if needed.)
11) Do not eat or drink anything the laboratory.
a) This applies to both food and chemicals. The obvious danger is poisoning. b) Not so obvious is that you should never touch chemicals. Many chemicals are absorbed
through the skin. Wash all chemicals off with large quantities of running water.
12) Wash your hands thoroughly with soap and water when leaving the laboratory.
13) Avoid breathing fumes of any kind. a) To test the smell of a vapor, collect some in a cupped hand.
b) Work in a hood if there is the possibility that noxious or poisonous vapors may be produced. 14) Never use mouth suction in filling pipets with chemical reagents. Always use a pipet bulb. 15) Never work alone in the laboratory. There must be at least one other person present in the same
room. In addition, an instructor should be quickly available. 16) Wear shoes in the laboratory. Bare feet are prohibited because of the danger from broken glass.
Sandals are prohibited because of the hazard from chemical spills.
17) Confine long hair and loose clothing (such as ties) in the laboratory. It may either catch fire or be chemically contaminated. a) A laboratory apron or lab coat provides protection at all tinges. A lab apron or lab coat is
required when you are wearing easily combustible clothing (synthetic and light fabrics). b) It is advisable to wear old clothing to laboratory, because it is both generally not as loose and
flammable, and not as expensive to replace. 18) Keep your work area neat at all times. Clean up spills and broken glass immediately. Clutter not
only will slow your work but it leads to accidents. Clean up your work space, including wiping the surface and putting away all chemicals and equipment, at the end of the laboratory period.
19) Be careful when heating liquids. Flammable liquids such as ethers, hydrocarbons, alcohols,
acetone, and carbon disulfide must never be heated over an open flame. 20) Spatters are common in chemistry laboratories. Test tubes being heated or containing reacting
mixtures should never be pointed at anyone. If you observe this practice in a neighbor speak to him or her or the instructor if needed.
21) Always pour acids into water when mixing. Otherwise the acid can spatter, often quite violently.
"Acid into water is the way that you oughter."
22) Do not force rubber stoppers onto glass tubing or thermometers. Lubricate the tubing and the
stopper with glycerol or water. Use paper or cloth toweling to protect your hands. Grasp the glass close to the stopper.
23) Dispose of excess liquid reagents by flushing small quantities down the sink. Consult the instructor
about large quantities. Dispose of solids in crocks. Never return reagents to the bottle. 24) Carefully read the experiment before coming to the laboratory. An unprepared student is a hazard
to everyone in the room.
25) Finally, and most important, think about what you are doing. Plan ahead. Do not cookbook. If you
give no thought to what you are doing, you predispose yourself to an accident. ------------------------------------------------------------------------------------------------------- I have read and understand the Laboratory Safety Rules. _________________________________________ ________________ (Name) (Date)
Be Safe At ALL Times!
Walkau’s Lab Write Up Guide
Guidelines for writing quality chemistry lab reports
Formal Lab Report
All parts of the lab report are to be done on the computer (drawings, tables, charts, calculations, etc).
Handwritten lab reports will not be accepted and given a mark of zero.
Use any word processing, spreadsheet and drawing programs to make your report as professional looking as possible.
Electronic versions of your report are to be saved in either .doc or .rtf file formats.
Marks will be deducted for messy, incomplete and improperly formatted reports, along with any pen and pencil additions.
Lab Title
your name
(solo/group)
list of group
members
date
teacher
Lab Title Lab Title
Purpose (one sentence)
Materials
Method complete sentences past tense + impersonal
Observations qualitative + quantitative table format
Calculations show all calculations clearly
Questions write out each question in italics answer in complete sentences
Discussion & Analysis (D&A) half page minimum discuss results/expectations experimental error don’t rehash method
Walkau’s Lab Write Up Guide
Guidelines for writing quality chemistry lab reports
Semi-Formal Lab Report
All parts of the lab report are to be done on the computer (drawings, tables, charts, calculations, etc).
Handwritten lab reports will not be accepted and given a mark of zero.
Use any word processing, spreadsheet and drawing programs to make your report as professional looking as possible.
Electronic versions of your report are to be saved in either .doc or .rtf file formats.
Marks will be deducted for messy, incomplete and improperly formatted reports, along with any pen and pencil additions.
Lab Title
your name
(solo/group)
list of group members
date
teacher
Lab Title Lab Title
Observations qualitative + quantitative table format
Calculations show all calculations clearly
Questions write out each question in italics
answer in complete sentences
Discussion & Analysis (D&A) half page minimum discuss results/expectations experimental error don’t rehash method
Walkau’s Lab Write Up Guide
Guidelines for writing quality chemistry lab reports
Visual Lab Report
All parts of the lab report are to be done on the computer (drawings, tables, charts, calculations, etc).
Handwritten lab reports will not be accepted and given a mark of zero.
Use any word processing, spreadsheet and drawing programs to make your report as professional looking as possible.
Electronic versions of your report are to be saved in either .doc or .rtf file formats.
Marks will be deducted for messy, incomplete and improperly formatted reports, along with any pen and pencil additions.
Lab Title
your name
(solo/group)
list of group members
date
teacher
Lab Title Lab Title
