BCH 2004 Laboratory sem B 20082009

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BCH 2004 Laboratory sem B 2008-2009

• Peter Tanner
• Room B6709
• Tel [phone]
• bhtan_at_cityu.edu.hk
• http//personal.cityu.edu.hk/bhtan/

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Learning...

• You learn to work together to perform the
  experiment..
• You learn to be individual in writing up the
  report..
• You learn to work as a group in calculating
  results and discussing when writing up the group
  report...

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Experiments

• You will perform all experiments in a group.
• Make sure that the demonstrator puts initials and
  date on your results. Hand in a photocopy with
  your write-up.

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What you need to prepare

• 1. Download the Lab Guide and Lab Manual from the
  web page, under "Courses".
• http//personal.cityu.edu.hk/bhtan/
• 2. Read the Lab Manual Guide.
• 3. Check the Rota to see what experiment you are
  doing.
• 4. Read and prepare the experiment.
• 5. Come on time for the lab session.
• 6. Make sure you bring a calculator, etc.

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Times......

• Be aware of the lab dates...
• Look at the rota...

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But I dont know about this.....

• Some experiments may be completely unfamiliar...
• not yet covered in lectures....
• because the expts are on a rota system.
• So it is up to you to learn, revise, ask and be
  prepared for the experiment
• Dont complain that
• nobody taught me that before

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In the lab......

• Safety Read the Lab Manual Guide (pages 5,6).
• Do not rush around the laboratory, take your time
  and do not bump into people.
• Wear your lab coat at all times. Wear the safety
  glasses provided.
• Do not eat or drink.
• Do not put waste organic solvents, or solids,
  into the sink.

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In the lab.....

• Wash up before you leave the laboratory.
• If you use acid, pour it out in the fume cupboard
  - not on the open bench.
• Wear gloves.
• Keep the fume cupboard front glass pulled well
  down.
• If you are uncertain about anything, ASK, do not
  just go ahead and make a mistake.

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Staff

• P.T. (present only for 1 hour). Expt. 8a
• Technicians
• Ms Yeung Wai Fun (Connie) Expt. 6
• Mr Chan Ho Hang Expts 4, 8b, 9
• Mr Lau Chi Lam Expt 5
• Research students and staff
• Lee Pui Kei Expt 11 (and group report for 8)
• Guohua Jia Expt 3 (and group report for 4)
• Wang Yining Expt 2 (and group report for 9)

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In the Lab General Procedure

• Do not pipette directly from bottles because you
  may contaminate the solutions. First, pour a
  little into a beaker.
• Use a pipette sucker, not your mouth.
• Keep bottles and glassware away from the edge of
  the bench.
• Remember to remove the funnel after filling up
  the burette.

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In the lab...

• After registering
• 1. You have a 10-15 minute pre-lab test for
  Expts. 2, 3, 5,11.
• (do not come late and miss it!!)
• 2. Start Expts 4, 9 immediately with H.H.Chan
• 3. Expt. 6 Wait for Connie to take you to GC
  room.
• 4. Expt. 8 PT will start immediately after
  registration.
• 5. Mr Lau will help you to prepare solutions for
  Expt 5 in the lab before you go to the IR room.

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Experiment plan for BCH 2004
Bench 3
Expt 4
Expt 9
Fumehood
Computer
Expt 6
Bench
Expt 2
Expt 3
Window
Bench 2
Where to go in the lab...
Expt 8
Bench 1
Expt 11
Expt 5
Fumehood
Door
P2609
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Experiments

• There are 8 (in RED in manual, from 2 to 11),
  and you will perform 6 of them on a Rota basis.
• Prepare the Expt. in advance. Look at the
  schedule outside the laboratory P2609.
• For individual write-ups
• TWO experiments from Expts. 2, 3, 11
• do not copy - do it yourself
• Make sure the research student initializes the
  group results at the end of the lab. You can hand
  in a photocopy of this.

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Experiments

• We will give you a page in which to write your
  results for
• Expt 3 (to help to organize your data)
• Expt 4 (for the group report)
• Expt 6 (for the group report)
• Expt 5 (for the group report)
• Expt 8 (for the group report)

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Experiments

• hand in the lab report at the following lab
  class. You will be graded from A to F and can
  get the reports back AFTER week 8.
• For group write-ups
• Expts 4, 5, 6, 8, 9
• work out the result before leaving the lab. You
  can check your Group Report with the
  demonstrator.

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Marking

• For your individual write-up
• Use the Header as on page 3 of the Lab Guide.
• Give the Expt date, not the date you are writing
  up.
• Look at the Sections of the Report on page 3 of
  the Lab Guide.
• Follow the points in the marking scheme.

http//personal.cityu.edu.hk/bhtan/guidecon.htm
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Marking

• For group reports
• work out results
• answer questions together
• you can discuss the experiment with the Research
  Student at end of lab

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Expts 2, 3,11Hand in 2 of these only....

• Individual write-up to PT following lab session

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Assessment Marks

• Pre-lab test 5 marks (4)
• Individual write-up 10 marks (2)
• Total lab marks add up to 40.
• BCH 2004 coursework 30 exam 70

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More about write-up

• Errors It is good to give an indication of the
  errors in your experiments, if only by repeating
  and working out the standard deviation.
• You can calculate the errors as on pages 10 to 21
  of the Lab Guide.

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Enjoy the labs work carefully and smart