C154 orientation sept2013
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C154 orientation sept2013

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C154 orientation sept2013 C154 orientation sept2013 Presentation Transcript

  • 1 CHEM 154 Laboratory: Winter 2013 Welcome to the lab portion of CHEM 154 ! N N N N CH3 CH3 CH3 O O
  • 2 3. Introduction 5. Lab Safety 8. Purpose of Labs 9. Chem 154 Experiments 10. Part A of Experiments 11. The Lab Manual 15. Experimental Design Form 16. On-Line Introductory Material 27. Resource Centre 28. Part B of Experiments 30. Lab Reports 33. Student Groups A, B and C 34. Personal Lab Schedule Sheets 36. A Brief Tour of the Lab Manual Outline
  • 3 Introduction Laboratory Assistant Director: Emily Ng * office in lab room B370 * 604 - 822 - 5342 (office) * freshman154@chem.ubc.ca Feel free to email me questions. However, as there are over 700 students in CHEM 154, please first ask the teaching assistants (TAs) in the Resource Centre (Chemistry Building B357) for help before sending me e-mail. Otherwise, I will be swamped with masses of email, and will likely stop answering any questions by e- mail. Thanks for your understanding. Note that I do NOT check email on weekends.
  • 4 The Lab Manual Please purchase a copy of the CHEM 154 Lab Manual 2013/14 from the UBC Bookstore before proceeding any further with this Introductory Slide Show. The manual cover is shown here to the right. A green booklet called “Bridging To The Lab” is shrink-wrap packaged along with the Lab Manual.
  • 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. You must respect the safety protocols! Before coming to the lab, you should watch the Lab Safety Video found on the Chem 154 Laboratory Connect site.
  • 6 Safety in the Lab Safety Glasses You must have eye-protection on at ALL times! Your TA will kick you out of 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 8 (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 Safety in the Lab Lab Coats (Must be long and 100% cotton) 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. The following three points must be strictly adhered to: (1) No open-toed shoes. You must wear socks and closed toed shoes. This is so that you will not damage your foot if you drop chemicals on it. (2) Wear long pants. Your legs must be protected. (3) Tie long-hair back out of face. This will prevent hair from falling into a beaker full of acid or into a flame, etc.
  • 8 Purpose of the CHEM 154 Lab In this course we want you to see what it is like to be a chemist. "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)
  • 9 Chem 154 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…..
  • 10 Part A of an Experiment 1. Read the Lab Manual 2. Complete the Experimental Design Form 3. Read the On-Line Introductory Material For example, refer to page 15 of your lab manual for a list of the Dry Lab Week requirements for Experiment #1A. At home, prepare for the lab:
  • 11 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 chemist does. The Lab Manual has thus been written in a manner that is designed to focus and direct this thinking process.
  • 12 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
  • 13 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
  • 14 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 18 of the lab manual has this concept map for Experiment #1B.
  • 15 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 29-30 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 have not made a critical mistake.
  • 16 Part A Requirements: (3) On-Line Introductory Material This on-line material is meant to help you design your experiment. There are various types of multimedia resources available to you. 1. Bridging to the Lab Modules 3. The Virtual Lab 2. Technique Modules 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 15, point #2. For Experiment #1A, there are two Technique Modules to be read on-line. You are strongly recommended to read all On-Line Introductory Materials, as this will help you design your experiment, and give you a preview of the experiment.
  • 17 (3) Introductory Material: Bridging To The Lab modules This booklet is packaged along with your lab manual, and in the back cover of the booklet is a CD. Bridging To The Lab (BTTL) modules are useful as they provide an interactive introduction to techniques and equipment used in the real lab. Three BTTL modules that you will be doing relate to one of your labs: BTTL module #3 ties in with Experiment 6, module #4 relates to Exp. #5 and module #10 to Exp. #11. Other BTTL modules that you will be doing have been chosen by your professor to focus on the lecture topic (modules #5, #6 and #8).
  • 18 (3) Introductory Material: Bridging To The Lab modules The Main Menu of BTTL lists the various modules. Let’s take a look at the BTTL CD... All CHEM 154 students are required to do modules #3, 4, 5, 6, 8 and 10 of the BTTL CD/Workbook. Hand in the worksheets to your TA on the dates noted in your personal Lab Schedule (more on this later).
  • 19 (3) Introductory Material: Bridging To The Lab modules Each module ends with a Self Test. This is not mandatory, but it is a useful way to see if you have gained sufficient knowledge on the topic.
  • 20 (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 Click to access the modules
  • 21 (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. You do NOT have to answer these questions, as they are for CHEM 121 students only.
  • 22 (3) Introductory Material: Technique Modules You can use any of the public-access high-speed terminals on campus if you do not have access at home (SUB or libraries). 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.
  • 23 (3) Introductory Material: The Virtual Lab The Virtual Lab program allows you to simulate titration experiments. You can fully design your experiment using the Virtual Lab to test various scenarios. This is also a purely optional resource. There are also Virtual Lab tutorials to help you with calculations for some experiments.
  • 24 The Virtual Lab software To find the Virtual Lab software, click the Experiment link and then the Virtual Lab link. The Virtual Lab is available for Experiments 1, 2 and 6.
  • 25 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 Each experiment has a Check-List in the Lab Manual to remind you of all the Dry Lab Week components. For example, see the top of page 26 of the manual.
  • 26 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. Students are permitted only 1 make-up lab session per term. Don’t waste it due to being unprepared. Read your schedule to make sure you are prepared for the correct experiment.
  • 27 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 who work in the labs. However, they do have access to the CHEM 154 Lab TA Manuals and should thus be able to help you with all aspects of the lab. The Resource Centre is usually open Mon-Fri, and the hours of operation will be posted on the door. 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 B370.
  • 28 Part B of an Experiment In the lab: 1. Perform the experiment. 2. Clean up your bench area. 3. Complete your Lab Report in class. 4. Hand in the Report to your TA.
  • 29 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. Listen to the Lecturing TA’s brief Intro / Demo lecture (~ 5 min). 4. Break into groups with your own TA and discuss the experiment (~ 5 min). 5. Have your TA briefly check your Experimental Design Form. 6. Begin performing the experiment. 7. When there are only 20 minutes left, you must begin to clean-up your bench area. 8. Once cleaned-up, finish your Lab Report and hand it in to your TA. Have your TA sign your report to acknowledge that you cleaned up.
  • 30 Laboratory Reports Laboratory Reports are written on Laboratory Report Sheets (coloured pages) provided in the Lab Manual with each experiment. This is done in the lab. For example, refer to pages 31-32 of the Lab Manual. 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.
  • 31 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. Student's 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.
  • 32 Laboratory Mark All together, the lab is worth 15% of your course mark. As shown inside the front cover of your Lab Manual, your lab mark consists of Lab Work and Bridging To The Lab Modules. You must pass both the lab & lecture components of the course to pass Chem 154. Lab average for 2012 session was 12 / 15. The only people who ever fail the lab are those who miss entire experiments and don’t schedule Make-Up sessions.
  • 33 Student Groups A, B, and C Lab students will be split into three groups, A, B, and C. When one Group is “in-lab” performing a Wet Lab Week experiment, the other two Groups will not be in the lab. Those two Groups should be doing Dry Lab Week assignments. You will thus be in the lab roughly once per month. Check Chem 154 Laboratory Connect on Sept 6th to find out whether you are in Group A, B, or C. The three groups will check into the lab at different times during the Check-In Week (Sept 9 and 11). 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 sheet clearly describes when and what you must do. Groups A-C will NOT be doing the exact same set of experiments.
  • 34 Lab Schedule TOP PART OF THE SCHEDULE
  • 35 Sample Lab Schedule (Group A12) Your Bench Number. This is where you will be working in the room. Exp Number John Student 12345678 Lab ID A1249 49 Check the room number. Date Your Lab ID # label. It indicates you should use the Schedule for Group A12.
  • 36 Brief Tour of the Lab Manual Structure of the Manual: Inside Front Cover Marks distribution Next Page General Course Information Schedules Table of Contents Pages 1 - 14 Introduction Pages 15 – 92 Experiments Pages 93 - 109 Techniques Graph Paper Inside back cover Periodic Table Please read p. 1-14 for a review of the material in this slide show and also for supplemental information not covered in this slide show.
  • 37 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 1-8 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, Emily Ng, in my office (B370). Good luck to everyone in CHEM 154 !