[Prep Lab Students] Spring 2025- Week 9

[Weaver, Tyler]

Be sure you are reading the entirety of this email message. You are accountable for the entirety of all messages sent to you by the Prep Lab Staff. Emails sent to preplabstudents at lists.osu.edu<mailto:preplabstudents at lists.osu.edu> are archived for your convenience at https://lists.osu.edu/pipermail/preplabstudents/

Hi there!

We’ve only got Week 9 between us and spring break! Here’s what we need to tackle:

[cid:image001.png at 01DB8836.47126140]

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

Please see my Week 8 email<https://lists.osu.edu/pipermail/preplabstudents/2025-February/000254.html> for notes on PPG and SAL.

SGR
Strawberry Jolly Ranchers are no longer manufactured, we have included red lifesavers in some sets of candies as a substitute. You may get questions about this.

The TAs will pick up candies from the window, these will be on the unknown shelf. Students will need to use the carboy of distilled water in the lab for this one- please check the level in the carboy when you are doing your readiness checks. If it looks low, let us know. If the students need to re-smash their candies, they can do so by gently tapping the candy with an iron ring while the candy is resting on a silicone trivet. Be prepared to pass out replacement 50-mL volumetric flasks.

EMS
These will be set up on the bench beside Hood A. Replacement parts are available in the window.

SST
This experiment will be done in pairs this semester and moving forward. If a lab indicates they don’t have enough meters and probes, be sure they are planning to work in pairs.

Students and pH meters don’t always get along. The lab supervisors and prep lab have made significant efforts to help this. pH meters, probes, and cables to connect the two, are on the bench closest to Hood A.

There will be a few rooms with a mix of old (black cable), most rooms will have new (white wire) probes. The probes with the black cables will need to be attached to the top of the meters whereas the new probes will need to be attached to the probe and meter via the supplied white cables.

Connections are made on the top of the meter by pushing and turning (BNC type). Both pH probe types will have either a black o-ring or blue rubber piece at the top of the probe shaft to cushion it from the glass storage tube and help seal in the storage solution. These should stay at the top of the probes while the students are taking readings.

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. Emma has prepared a guide on how to handle pH meter issues. It will be available in the window.

HCAL
The lab manual asks the students to download and use a program called LoggerLite. This is no longer available. Students and TAs have been instructed to use a program called Graphical Analysis. It can be downloaded from go.osu.edu/graphicalanalysis.

GoTemp! Probes are in the lab in a drawer under the oven. USB adapters are also available in this drawer, if needed. Sarah, Emma, or I will take care of the unknown environment which will be setup in Hood A.

CLK
This one tends to either be quick or take the whole lab session. Flip thermometers, timers, and rulers are all in the student drawers. Extra thermometers and replacement batteries will be in the window. This one usually uses a bunch of spill kits. Keep a close eye on your spill kits and request replacements as needed.

Other Important Information

Summer Hours!
Anyone that is interested in working in the prep lab over the summer should let me know in the coming weeks. We have lab only one day a week this summer, Tuesdays 8:30am-11:25pm and 12:00pm-2:55pm, but will be open all week.

Leaving the Prep Lab?
Anyone that will be graduating or leaving their position in the Prep Lab for any reason after the end of spring semester should let me know as soon as possible. This will help me plan staffing for fall semester.

March is Workplace Eye Wellness Awareness Month!
In celebration of this, we have hidden 5 goggle emojis around our spaces. If you can locate all 5, fill out one of the pink quarter sheets of paper on the Daily Sheet cabinet with their location and what eye protection should be used in that area. Submit the sheet to any Prep Lab Staff member and earn a full-size candy bar! Please don’t share this information with others, this is also partially intended to be a reward for reading my Sunday emails. Only valid 03/03/25-03/31/25 while supplies last. Void where prohibited. See store for details.

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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