[Preplabstudents] Spring 2024- Week 6

[Weaver, Tyler]

Howdy Folks!

Sorry this is late!


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

MML
Model kits will be provided on the bottom of the reagent carts.
We do have replacement parts in each window if needed.

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 every 30 minutes by someone from the window. Set a timer for 30 minutes to remind yourselves. This video<https://urldefense.com/v3/__https:/youtu.be/a8J57oDHy_I__;!!KGKeukY!zXurjiNxKzlfrtzcJ-5wsqFfnNNLIj5lcur14Zz-44Q7whi8tX7T2qsC1X_BHHiH2-KtA2sSiyLYs1Ho96HIe1cQZkj215mJMoc$> shows how add ice and transfer water from the receiving flask to the heating flask properly.

PbI
Solid reagents will be handed out from the windows.
Vacuum tubing is in a drawer at each station. Extras will be available at each window.
We’ll be using the vacuum ports for this experiment; the TAs do not need to turn the pump on or off- it will take care of itself. We will be using the ovens; they open by pulling the bottom of the handle up towards the ceiling- no rotating required.

BAR
The UV-Vis spectrometers are behind the white boards in each room.
Cuvettes and volumetric flasks will be on the reagent cart and should be returned to the cart after use. Be prepared to replace the volumetric flasks, they occasionally get broken.

LLT
Be prepared to hand out lots of burets, pipets, blue bulbs, and blue stoppers. Remember that the pipets and blue bulbs are available on the window cart. Please refill the window cart when things start to get low- this goes for all items on the window cart, not just the pipets and bulbs. Blue stoppers are in one of the drawers within the window room.
The 0.44 M NaOH carboy should be kept on the special carboy spill tray. If the drip tray gets full, let us know so that we can take care of it.
Keep an eye on the buret reading cards when completing your lab readiness checks. Refills are available behind the whiteboards.

GAS
Each TA will pick up a large bag containing Alka-Seltzer, antacids, and small empty bags.
Its ok for students to ask for an additional package of Alka-Seltzer at the window for Part C.
Extra tubing for the gas collection apparatus will be available in the window.

SST
pH meters…Students and pH meters don’t always get along. pH meters with probes are on the reagent carts.
If a student claims their pH meter is “broken”, they should have their TA try to calibrate it before bringing it to the window for an exchange. Sophie and Alec will have replacements in the windows.
“Broken” meters should be placed in the labeled bin so that one of the prep lab staff can check them and make any necessary repairs.
Extra wetting caps are available in each window, these are the little bottles that the probe tips are stored in.
We also have extra storage solution, the liquid that goes into the wetting cap, in each window if needed.

Other Important Information-

Carts have wheels

I’ve seen some folks carrying bottles over to carts. Remember that our carts have wheels and can very easily be pushed over to where they are most useful.

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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