[Prep Lab Students] Autumn 2025- Week 2

[Weaver, Tyler]

The Weekly Mix
Volume: Autumn 2025 | Edition: Week 2
Schedule

What a weekend! Three days of beautiful weather and a win over the Longhorns! Let’s carry that momentum into our first week of lab. Here's what we have planned:

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Experimental Details

DPR

TAs should not need to pick up anything from the lab support window. Please see the notes below about pipets, pipet pumps, & burets and goggles & lab manuals.

WRM

TAs should not need to pick up anything from the lab support window. We’ll keep a box of extra WRM pipets in the window. Please break into this if a room runs out prior to the next cart check. The box is white and should say “WRM pipets” on it. If the box starts to get low, let us know. Please see the notes below about pipets, pipet pumps, & burets and goggles & lab manuals.

INK

TAs will be picking up INK unknowns from the lab support window. Remember that unknowns will be kept in the plastic boxes on the unknown/handouts shelf. Do not give out unknowns to students. We have put some extras of each pen, pencils, and blank chromatography paper in both windows just in case they are needed. Be prepared to give out 50-mL volumetric flasks. Please see the notes below about pipets, pipet pumps, & burets and goggles & lab manuals.

General Information

Pipets, Pipet Pumps, & Burets

Be prepared to direct students to the window cart for pipets, pipet pumps, and burets. Pipet pumps that “leak” and pipet pumps that have glass broken off in them should be collected in the designated bin.

Goggles

If students need goggles that fit over their glasses, they can swap their “normal” goggles at the window for a pair of OTG goggles. If the OTG goggles still don’t work, we have a number of other options they can try. These are in a small white bucket in each window. These goggles should be cleaned with the provided alcohol wipes before students try them on.

Students in Chem 1110, 1210, 1610, and 1910H will receive a free pair of goggles from their Lab TA. If a student not enrolled in these courses has never taken a chemistry course on OSU’s Columbus campus, they may stop by the window and get a pair of goggles for free. If they have taken chemistry on the Columbus campus before and do not have the goggles they were previously provided with, they’ll need to purchase a new pair from Chem Stores, 180 Celeste.

Everyone should be keeping an eye out for goggle box litter. Please help keep our trash under control by picking up anything you see. Please replace the bags in the blue recycling barrels as necessary. Extra trash bags are available in both windows. Emptied large cardboard boxes should be broken down and placed in the hallway for recycling.

Lab Manuals

Boxes of lab manuals have been dropped off in each lab room. The boxes are stacked on the floor against the wall closest to Hood B. Each box has already been cut open for easy access. Emptied boxes should be broken down and placed in the hallway for recycling. Towards the end of the week, we may need to redistribute boxes between rooms to account for enrollment variances. We have been made aware that the covers on some manuals were accidentally cut when the boxes were opened. Please set any damaged manuals aside, we can tape them and use them for TAs in the spring.

1910H In-Lab Demos

Dr. Zhang will be doing a few in-lab demos for his students this semester. This coming Tuesday, September 2nd, he will be doing fireworks balloons. There will be some loud bangs toward the beginning of the lab period for the 8:00am and 11:10am sessions.

Security

When closing a floor, be sure that all labs are locked up. If there are two people assigned to the window, one person should lock the lab doors, the other person should later check that they are all truly locked.

If a lab is not being used, it needs to be locked. If you are completing a task that necessitates unlocking a room, please relock the room when you leave it.

We cannot leave the prep lab unlocked and unattended. If you are the last person in the office/lab and need to go somewhere please have someone come down to babysit the lab, or grab key #1 in Keyth, and lock up while you are gone. If Sarah and/or Emma dismiss the student employees before returning to the lab, the students should lock the door into the office and the door into the lab before heading out.
General Chemistry Prep Lab • Department of Chemistry and Biochemistry • THE Ohio State University
preplabstaff at lists.osu.edu

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