[Preplabstudents] Autumn 2024- Week 3

[Weaver, Tyler A.]

Hi friends!

We made it through our first week of lab! Note that Monday is a holiday, so the prep lab will be closed. Students are not permitted to log hours on university holidays.

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Experiment Notes-Refer to the window notes and gather sheets for additional details.

DAG
Materials will be provided on the bench beside Hood A. Be prepared to provide replacement plastic 50 mL graduated cylinders. The students like to put these in their drawers instead of returning them. Be prepared to hand out more if you are in the window. Be aware that there are not enough of the known brass pieces for each student to have their own. This is normal, they need to share.

CPC
The distillation apparatus needs to be unplugged when not in use. Ideally, the pump and heating mantle should be plugged in and turned on about 10-15 minutes before the lab session starts. The apparatus needs to be checked at least every 30 minutes by someone in the lab support window. Set a timer for 30 minutes to remind yourselves. This video<https://www.youtube.com/watch?v=a8J57oDHy_I> shows how to add ice and transfer water from the receiving flask to the heating flask (still pot) properly. You must watch this video prior to the start of CPC. Remember that both tubes (from the condenser and to the condenser) should be inside the ice/water bucket.

We have put a white plastic mallet in each window. Please use this to break up any ice clumps in the ice machines. A plastic beaker with a handle will also be in each window- use this to add ice to each apparatus.

SOL
Keep an eye on the 25 mL test tubes and weigh boats during your lab readiness checks. These items will likely need to be restocked throughout the week. Replacements are available behind the white boards. Green stoppers have been moved into the drawers.

CDY
The TAs will pick up Jolly Ranchers, which are on the unknown shelf. The students will need to use the carboy of distilled water for this one- please check the level in the carboy when you are doing your readiness checks. If it looks like it’s getting low, let us know.

Other Important Information-

Headphones & Watching Shows/Movies/Etc.

Please remember that you are not permitted to wear headphones while on the clock. This includes using a single earbud. Please don’t try to hide it with your hand or hair… it’s disrespectful. Please also remember that you are not permitted to watch shows/movies/etc. while on the clock. When other members of the Department see this, it causes trouble.

Window Items

When TAs turn in completed waste sheets, please place them in the silver bin. If the bin is getting full, please let us know.

I am adding a “Window Tasks” section to the Daily Sheet. We need to do better with sanitizing and checking the ice machines now that we will have students moving around more. We also need to be sure we are checking the stills for CPC. I will no longer be assigning cart moves to specific people. Someone from the window needs to complete the tasks shown, then initial on the line once complete.

240/260/340/360 Trash

We need to make sure the trash cans in these rooms are pulled into the hallway after the last lab each day and returned for the first lab the following day. The TAs and Head TAs will help us with this, but we are ultimately responsible for making sure this happens. I think the easiest plan is that whoever closes the room at the end of the day makes sure the trash cans are out. The person doing the lab checks in the morning should make sure they are put back.

Lab Manuals and Goggles

We will be moving extra lab manuals and goggles into the windows at the beginning of the week. Students that need either of these items will be instructed to stop by the window.

Outstanding Training Items

Please check the Prep Lab forum for any outstanding training items. I would like to get all of these completed by the end of Week 3. If you completed the make-up fire extinguisher training with Dr. Moore, you will need to upload your certificate to receive credit.

Please let us know if you have any questions.

Best,
Tyler

[The Ohio State University]

Tyler Weaver
Instructional Lab Supervisor
General Chemistry Prep Lab Manager

The Ohio State University
Department of Chemistry and Biochemistry
280E Celeste Lab
120 W. 18th Ave., Columbus, OH 43210
(614) 688-3929 Office
weaver.646 at osu.edu<mailto:weaver.646 at osu.edu>

Pronouns: he/him/his

Please do not feel obliged to read or reply to my messages outside of your normal working hours.
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