[Prep Lab Students] Autumn 2025- Week 4

[Weaver, Tyler]

The Weekly Mix
Volume: Autumn 2025 | Edition: Week 4
Schedule

Up next is Week 4! Here’s what we got going on:

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Experimental Details

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

Please see the Week 3 edition<https://lists.osu.edu/pipermail/preplabstudents/2025-September/000294.html> for details on CPC, MSR and SOL.
DAG

Materials will be provided on the bench beside Hood A. Be prepared to provide replacement plastic 50 mL graduated cylinders. The students tend to put these in their drawers instead of returning them. There are now enough brass pieces of each type for each student to have one.

FPD

Be prepared to direct students to the ice machine outside of the restrooms. Keep an eye on the ice machines, let us know if it’s getting low. If the machine is getting low, we can top it off with ice from the prep lab. You are also welcome to suggest students use the ice machine the third floor- there are no 1220 labs up there this semester. We do not provide a scoop to students; they should just use an empty beaker from their drawer. Please see the FPD apparatus guide for details on replacement parts and repairs that can be done within the lab support window.

SYN Day 1

Be prepared to direct students to the ice machine outside of the restrooms. There is no scoop provided, students should just use an empty beaker from their drawer. Emma, Sarah, and/or Tyler will manage the microwave. Note that concentrated phosphoric acid is not needed for Day 1 and will not be provided. Each room will have a microscope. We will snag a tiny amount of sample from the first group to obtain crude product to put under the microscope. If students observe the temperature on the digital readout going down as they heat up their melting point apparatus, they plugged the thermocouple in the wrong way. They just need to remove it, turn it 180˚ and reinsert it. Replacement thermocouples will also be available in the window. Each room is limited to only 6 groups due to the layout in the microwave. If a room asks for more reaction tubes, please check they don’t have more than 6 groups before handing anything out. Any questions you cannot answer should be directed to Tyler.

EMS

These will be set up on the bench beside Hood A. Replacement parts are available in the window. The power supplies and discharge tubes are new, but the spectrometers are the same.

General Information

Window Tasks

Please do not complete window tasks too early. We intentionally have them offset from certain times to be sure the window is appropriately staffed.

Shift Switches

Please remember that shift switches are not official until an email is sent to preplabstaff at lists.osu.edu. The sub-GroupMe is intended to only be used as a tool to facilitate shift switches.

Blue Bucket Lids

Take the cart moves sheet with you. We laminate it specifically so you can do this. Be sure you are placing and removing the red lids for the blue buckets as needed. Let us know if you have any questions here.

Consumable Items Checklist

We have made some adjustments to the consumable items checklist to help clarify a few points. We have also provided a clipboard in each window to use when completing these checks. The clipboard has a sticker on it with Emma’s guide to restocking the consumable items. Please consult this resource as needed.

Training Survey

Now that we have a couple weeks of lab under out belts, I would like to collect information on how well our training sessions prepared you. Please complete the survey linked below by the end of the week. This is paid time.

https://osu.az1.qualtrics.com/jfe/form/SV_02pxl6AWuSQ3uWq
General Chemistry Prep Lab • Department of Chemistry and Biochemistry • THE Ohio State University
preplabstaff at lists.osu.edu<mailto:preplabstaff at lists.osu.edu>
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