1. 1
CHEM 121 Laboratory: Winter 2013
Welcome to the lab
portion of CHEM 121 !
N
N
N
N
CH3
CH3
CH3
O
O

2. 2
3. Introduction
5. Lab Safety
9. Purpose of Labs
12. Part A of Experiments
13. The Lab Manual
17. Experimental Design Form
18. On-Line Introductory Material
28. Lab Quiz
31. HELP Centres
33. Part B of Experiments
35. Lab Reports
37. Laboratory Mark
38. Make-ups
40. Groups A and B
41. General Lab Schedule Sheets
44. Lab Website Calendar
46. A Brief Tour of the Lab Manual
47. Lab Check-In Week Instructions
Outline

3. 3
Introduction
Laboratory Director:
Dr. Sophia Nussbaum
Office in lab room B372
E-mail: freshmanchemlabs@chem.ubc.ca
Feel free to e-mail me questions. However, as there are over 2000 students in
CHEM 121, please first ask TAs (teaching assistants) in the Resource Centre for
help, or use the on-line Discussion Board, before sending me e-mail. Otherwise, I will
be swamped with masses of e-mail, and will likely stop answering any questions by e-
mail. Thanks for your understanding. Note that I do NOT check e-mail on weekends.
The Resource Centre and Discussion Board are described later on.

4. 4
The Lab Manual
Please purchase a copy of the CHEM 121/123
Lab Manual 2013-14 from the UBC Bookstore
before proceeding any further with this
Introductory Slide Show as we will be referring
to numerous pages in the manual.
The manual cover is shown here.
Please note: outdated lab manuals should not be
used. You MUST bring your lab manual to the check-
in lab.

5. 5
Safety in the Lab
Your physical safety is the number one concern in the lab.
Some of the chemicals that you will use can seriously harm
you if you do not observe the laboratory rules. Please
respect the safety protocols!
Before coming to the lab, please watch the Lab Safety Video
available on the laboratory Connect web site.

6. 6
Safety in the Lab
Safety Glasses
You must have eye-protection on at ALL times! Your TA will ask you to leave the lab if
after repeated warnings you are not wearing any eye-protection.
You can rent safety-glasses in the lab for $1 per lab session.
Prescription glasses are suitable eye-protection as long as they meet the size
requirements listed on page 17 (point i) of the lab manual. If your glasses are too
small, you will have to wear safety glasses on top of your prescription glasses.
Contact lenses are not recommended as chemical fumes can melt contacts onto your
eyeball! Either wear your prescription glasses, or rent special safety-goggles in the
lab.

7. 7
Safety in the Lab
Lab Coats
Students are required to wear lab coats. Students who do not wear a lab coat will
be discharged for the period and will be given a total mark of zero for the missed
laboratory.
The Chemistry Graduate Student Society sells the lab coats and safety glasses at
reduced prices. The signs are posted in the hallways.
Safety glasses and lab coats can also be purchased in the Bookstore. The lab
coats MUST be long and 100% cotton.

8. 8
Safety in the Lab
The following three points must be strictly adhered to:
(1) No open-toed shoes. So that you won't damage your foot if you drop
chemicals on it. Please wear closed shoes and socks.
(2) Wear long pants. Your legs must be protected.
(3) Tie long-hair back out of face. So that it doesn't fall into the beaker full of
acid, or a flame etc.

9. 9
Purpose of the CHEM 121 Lab
In this course we want
you to see what it is like
to be a researcher in
chemistry.
"Ni" Ni OCHMe2
1
Me2CHO-
Na+
R2CO Ni
O
OCHMe2
R2C
2
Ni
O
O
R2C
H
CMe2
3
Ni O CMe2
(a) (b)
(c)
(d)
Me2CO
H+
R2CH(OH)
Ni
O
O CMe2
4
R2CH
(e) (fast)

10. 10
What is involved in chemical research?
1. identifying a problem
2. finding information in the literature
3. posing scientific questions
4. formulating a hypothesis
5. designing an experiment to test the hypothesis
6. learning new experimental techniques
7. analyzing data & drawing conclusions
8. recognizing safety issues
There are many steps to performing chemical research. You will be learning
how to do the various things listed below in the CHEM 121 lab course:

11. 11
Chem 121 Experiments
Each experiment has two parts and lasts two weeks:
part A = “Dry Lab Week”
This involves doing preparatory work done at home before Part B. You will have
an entire week for Part A.
part B = “Wet Lab Week”
This is the actual experiment performed in the lab.
Your are expected to spend an equal amount of time on both parts of
an experiment!
Let’s take a look at Part A requirements first…..

12. 12
Part A of an Experiment
1. Read the Lab Manual
2. Read the On-Line Introductory Material
3. Complete the Experimental Design Form
4. Attempt the Sample Quiz
For example, refer to page 59 of your lab manual for a list of the Dry Lab Week
requirements for Experiment #3A.
At home, prepare for the lab:

13. 13
Part A of an Experiment:
(1) Read the Lab Manual
A sample page from the lab manual
Recall that we want you to learn to
think the way a chemistry
researcher does.
The lab manual has thus been
written in a manner that is designed
to focus and direct this thinking
process.

14. 14
Part A of an Experiment:
(1) Read the Lab Manual
Specific questions are asked in
the side column of the text.
These are meant to focus your
thoughts.
A sample page from the lab manual
Question

15. 15
Part A of an Experiment:
(1) Read the Lab Manual
Answers to the questions
are found within the main
text.
A sample page from the lab manual
Answer

16. 16
Part A of an Experiment:
(1) Read the Lab Manual: Concept
Maps
A Concept Map summarizes the
most important concepts of the
experiment and their
relationships.
It is a good idea to start reading
an experiment with the concept
map.
For example, page 28 of the lab
manual has this concept map
for Experiment #1B.
precise

17. 17
Part A Requirements:
(2) Experimental Design Form
• You are given the necessary background information on concepts and techniques.
• You must then piece this information together to devise a procedure that you can
follow in the lab.
• Keep it simple….use point-form style.
Fill out the Experimental Design Form with steps that you plan on following in the lab.
For example, pages 39-40 are the design form for Exp #1B.
The lab manual does not provide “easy-to-follow” step-by-step
procedures for each experiment.
Your TA will briefly check your Design Form at the beginning of the in-lab session
(Wet Lab Week) to ensure that you haven't made a critical mistake.
Need help? Check out the Experimental Design Guide on p. 4 in your lab manual.

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Part A Requirements:
(3) On-Line Introductory Material
This on-line material is meant to help you design your experiment. There are two
types of multimedia resources available to you.
1. Technique Modules 2. The Virtual Lab
The Dry Lab Week Requirements page for Part A of each experiment lists the
specific On-Line Introductory Material that is available for that experiment.
For example, see page 59, point #2. For Experiment #3A, there are two Technique
Modules and a Virtual Lab Interactive Tutorial to be done on-line. Be sure to bring
the Virtual Lab Feedback Form to the Wet Lab.
You are strongly recommended to read all On-Line Introductory Materials, as
some of the Lab Quiz questions will be based on this material (discussed
later).

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(3) Introductory Material:
Technique Modules
The Technique modules are located on-line on the Chemistry Laboratory
Connect site. Access them by clicking on the appropriate experiment.
First click on
the Menu item
on the left panel
Click to
access the
modules

20. 20
(3) Introductory Material:
Technique Modules
questions
The Technique modules
have pictures of the actual
equipment that you will
use in the labs.
There are also questions
located throughout the
modules that you should
consider answering, as
they might be on the in-lab
Quizzes.

21. 21
(3) Introductory Material:
Technique Modules
You can use any of the public-access high-speed terminals on campus if you don’t
have access at home (SUB, libraries, etc.).
Most Technique modules also
have slide shows that depict
exactly how to use various
apparatus, or how to correctly use
certain glassware.
These slide shows should greatly
assist you in preparing your
Experimental Design Form.

22. 22
(3) Introductory Material:
The Virtual Lab
The Virtual Lab (VL) program
consists of VL Activities and
Interactive Tutorials. The Activities
allow you to simulate titration
experiments.
You can fully design your
experiment using the Virtual Lab to
test various scenarios.
During the Lab Check-In Session
there will be a full demonstration
on how to use the Virtual Lab. The Interactive Tutorials help with calculations
required for various experiments.

23. 23
The Virtual Lab software
The VL program can be accessed by clicking on the Virtual Lab link within each
experiment listed in Connect. The Virtual Lab contains assignments which must be
completed during the appropriate dry weeks and handed in to TAs for marks.
The VL contents can also
be accessed through the
Virtual Lab Quick-link on
the Connect menu panel.

24. 24
Virtual Lab Feedback Forms
The accompanying Virtual Lab Feedback Form can be printed when the activity has
been completed:
The VL Feedback Forms
are worth 2 -3 marks.

25. 25
Part A Requirements:
(4) The Sample Quiz
Each in-lab session will begin with a 10 - 15 minute quiz. Any material
covered in that particular experiment’s On-Line Introductory Material may
potentially be asked about in the quiz. Any material found within the lab
manual may also potentially be on the quiz.
The lab manual has a Sample Quiz for each experiment. These types of
questions will definitely be on the quizzes. For example, see page 36 of the
lab manual for the Sample Quiz of Experiment #1B.
The purpose of the quiz is merely to test your level of preparation for the
experiment. It is not meant to be difficult. However, if you have not read the
lab manual or the On-Line Introductory Material, you will likely fail the quizzes.

26. 26
Part A of an Experiment:
“Dry Lab Week”
We have now covered all of the Part A requirements that must be done at
home before coming to the lab to do Part B during the “Wet Lab Week”.
1. Read the Lab Manual
2. Complete the Experimental Design Form
3. Read the On-Line Introductory Material. Print out the Virtual Lab
Feedback Form
4. Attempt the Sample Quiz
Each experiment has a Check-List in the lab manual to remind you of all the Dry
Lab Week components. For example, see the middle of page 36 of the manual.

27. 27
A word of Caution…..
If your Experimental Design Form is not filled out at the beginning of the in-lab
session, then your TA will know that you are not prepared for the experiment.
You may potentially be considered a Safety Hazard to all of the other students.
Your TA will ask you to leave and book a Make-Up lab with the Lab
Director. You will automatically lose 5 marks for that lab.

28. 28
Need Help? Resource Centre
If you need the help of a TA outside of the lab session, for whatever reason, then
please go to the Chemistry Resource Centre (room B357). The TAs that staff
this room are not the same people that work in the labs. However, they all have
access to the CHEM 121 Lab TA Manuals, and also have access to the Problem
Set Answer Keys for the Lecture material. They should thus be able to help you
with all aspects of both the lecture and lab.
The Resource Centre is usually open Mon-Fri, and the hours of operation will be
posted on the door.
Please do NOT try to contact your regular TA outside of the lab. They are not
paid to do any “out-of-lab” student contact, and are operating strictly under the
TA Union’s Guidelines. If you need to hand in a late Lab Report, or give your TA
a message, please do so through the Lab Director in room B372.

29. 29
Another resource available to you for help is the
Discussion Board. This is an on-line bulletin board
where you can post questions to fellow CHEM 121
classmates, and hope that you receive an answer.
The Discussion Board is not moderated by the Lab
Director or TAs. This means that if erroneous
information is posted, no one will be there to
remove it, so be careful about the quality of advice
that you receive. However, there will be a time slot
each week when a Resource Centre TA will
answer some of your questions. These times will
be posted.
Access to the Discussion Board is through each
experiment on the laboratory Connect page.
General questions can be posted to the Class
Discussion board accessed through the left menu
panel.
Need Help? Discussion Board
Click here

30. 30
Part B of an Experiment
In the lab:
1. Perform the experiment. Collect Observations and Data onto your
Experimental Design Form.
2. Clean up your bench area. Ask your TA to sign it off.
3. Mark the Observations taken by a fellow student (Peer Marking).
4. Have your TA sign your Experimental Design form.
5. Have your TA check your Result and sign your Report sheet.
After the lab at home:
Finish your Lab Report.

31. 31
What happens in the Lab?
During the 3-hour lab period:
1. Enter lab rooms (B272 / 370 / 372) and go to your assigned bench (# 1 - 48).
2. Store your bag / jacket in cupboards under the sinks.
3. Write the quiz (10 -15 min).
4. Listen to the Lecturing TA’s brief Intro / Demo lecture (~ 5 min).
5. Break into groups with your own TA and discuss the experiment (~ 5 min).
6. Have your TA briefly check your Experimental Design Form.
7. Begin performing the experiment (no lab partners, except for Exp #3).
8. When there are only 20 minutes left, you must begin to clean-up your bench area.
9. Complete Peer Marking (instructions will be given in the lab) and have your TA sign
your marked Observations on the Experimental Design Form.
10.Have your TA check your result and sign the Report Sheet before you leave the lab.
Data and observations must be recorded in pen. A lab report that has not been signed
by your TA might not be graded. Marks will be deducted for an incomplete clean-up.

32. 32
Laboratory Reports
Laboratory Reports are written on Laboratory Report Sheets (coloured pages)
provided in the lab manual with each experiment. Some parts of the report must be
completed in class, the rest is done at home after the lab session.
For example, refer to pages 41-42 of the lab manual.
Reports are due at the beginning of the next in-lab session (normally 2 weeks later).
Reports are marked by TAs and returned during the next Wet Lab session for your
inspection only. You may then keep the Cover Page but must return the rest of the
Lab Report.

33. 33
Reports & Design Forms
Students are encouraged to work together when designing the experiments.
However, each person must write their own Experimental Design Form.
Students must write their own Lab Reports.
Students copying any portion of each other's lab reports will receive a "0" on
the entire report. Pay special attention when writing your Discussion to
ensure that it is unique.

34. 34
Laboratory Mark
All together, the lab is worth 20% of your course mark.
You must pass both the lab & lecture components of the course to pass Chem 121.
Lab average for 2012 session was 17 / 20.
The only people who ever fail the lab are those who miss entire experiments and
don’t schedule Make-Up sessions.

35. 35
Making up a Missed Lab
Students are required to complete all of the scheduled experiments in
order to pass the course.
If a student misses an experiment, he/she is responsible for arranging a
make-up session with the Laboratory Director (Room B372). Students
MUST see the lab director if they miss an experiment.
A make-up session is only permitted under special circumstances;
writing a midterm on a lab day is not considered a special circumstance.
For details see p. 15 – 16 in your lab manual.

36. 36
Groups A and B
Lab students will be split into two groups, A and B,
alphabetically by their last name.
Group A students will all be “in-lab” performing a Wet Lab
Week experiment, while Group B students will all be at
home doing a Dry Lab Week assignment.
On Monday Sept 9th we will post lists in the Laboratory Connect
informing the Tuesday students whether they are in Group A or Group
B. We will continue posting the lists for other sections one day before
their scheduled lab time. The two groups, A and B, will check into the
lab at different times during the Check-In Week (Sept 10 - 13).

37. 37
How Do you Know What to Do?
You will receive a Lab ID
during the Check-In Week.
The Lab ID label will be
placed on an appropriate
Lab Schedule in your lab
manual. This schedule
clearly describes when
and what you must do.
Only the column
designated by the Lab ID
label should be used.
A Lab ID label will be
placed on top of one of
the columns during the
Check-in.
Jane Student
12345678
Lab ID B5249
Jane Student will do the
experiments in the
following order: Exp. #1,
#4, #2, #3 and #6 on the
days indicated in the
middle column.

38. 38
Lab Schedule Example: Group A2
Experiment title (colour coded)
Check the
room number.
Exp.
Number
Group ID:
Letter A & second
digit of Lab ID
Date
Exp. 1
Exp. 2 in Lab B272
Check Room #Quantitative Determination of Lead in a Contaminated Drinking Water Supply
Synthesis: Preparation of Alum from Waste Aluminum Pop Cans
49Your Name
Student #
Lab ID A3249
Your Lab ID # label. It indicates you
should use the Schedule for Group A2.
Your Bench Number.
These are the last two digits
of your Lab ID. This is where
you will be working
in the room.

39. 39
Lab ID
It is important to understand how your
Lab ID works to avoid mistakes in reading
the schedule:
Due to rotation, different students perform
experiments in different order. The order
of experiments is determined by the
second digit in the Lab ID – the Group ID.

40. 40
Brief Tour of the Lab Manual
Structure of the Manual:
Inside Front Cover Marks distribution
Information page Important information about the lab
Schedules Chem 121 Colour Laboratory Schedules
Table of Contents
Pages 1 - 24
Pages 25 – 114
Introduction
Chem 121 Experiments
Schedules Chem 123 Colour Laboratory Schedules
Pages 117 - 196 Chem 123 Experiments
Pages 197 - 224 Techniques
Graph paper
Inside back cover Periodic Table
Please read p. 1-24 for a review of the material in this slide show and also for
supplemental information not covered in this slide show.

41. 41
Lab Check-In Week Instructions
Check the monitors
in front of the labs.
Go to the lab
room assigned to
you (272, 370 or 372).
Pick up one of
these cards as
you enter the lab
room.
2013 WINTER SESSION

42. Lab Check-In Week Instructions
Open your Lab Manual on
Group A or Group B schedule,
according to your Group
assignment.
Give the Registration card to
the TA and the TA will place
your Lab ID label on the
correct schedule. Confirm
that the name and the
student # on the label are
correct!
Please fill in your
information

43. 43
The End
Thank you for viewing this Lab Introduction Slide Show.
Any remaining questions you might have will likely be answered either:
(1) On pages 1-24 of the lab manual.
(2) During the Lab Check-In Week.
If neither of these answer your question,
then please feel free to come and talk to
me, Dr. Sophia Nussbaum, in my office.
Good luck to everyone in CHEM 121 !