[Prep Lab Students] Spring 2026- Week 11

[Weaver, Tyler]

The Weekly Mix
Volume: Spring 2026 | Edition: Week 11
Schedule

Time to get back at it! Week 11 starts tomorrow!

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Experimental Details

Review the window notes and any associated equipment guides for additional details. Please refer to the Week 9 edition<https://lists.osu.edu/pipermail/preplabstudents/2026-March/000342.html> for details on CAR and SST.

SGR
The TAs will pick up candies from the lab support window, these will be on the unknown shelf. Students will need to use the carboy of distilled water in the lab for this one. 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 the blue base of the ring stand. Be prepared to pass out replacement 50-mL volumetric flasks.

IHT
Cups and lids will be in the red dispensers by the balances. We’re going to use quite a few weigh boats, cup and lids- so be sure to keep a close eye on these.

QUL
All rooms have a significant stash of 1.7 mL microcentrifuge tubes behind their marker boards. The students will be using the centrifuges for this- if they report one is not working, check the following: it’s plugged in, turned on, and the lid is fully closed. If it still doesn’t work, trade it with one of the extras in the window. Place a broken item sticker on the faulty unit.

When doing cart checks for this experiment, swap the entire bin of reagents regardless of fill level. Do not check individual bottles- it takes too long.

WST
If a lab indicates they don’t have enough meters and probes, be sure they are planning to work in pairs. pH meters, probes, and cables to connect the two, are on the bench closest to Hood A.

There could be a few rooms with old (black cable) probes, 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 white wire probes will need to be attached to the probe and meter via the white wire.

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, everyone is required to review it. It will be available in the window and the prep lab office.

BLP
There are two unknowns per TA: packaged solids in a black bag and packaged solids in a clear bag. You will NOT be passing out printed copies of the BLP lab manual pages. If someone needs notebook paper, they should be given the graph paper we have in the black paper organizer.

There will be glassware setup on the bench beside Hood A. Do not remove this glassware. These items will have rubber septa on them- do not remove these.
Other Information

340 Marker Boards

The supplies behind the marker boards in 340 have been reorganized. Some have been moved to the drawers under the balances.

Volunteer for Science Olympiad

Science Olympiad is on April 18th. Chemistry and Biochemistry will be hosting 4 events this year! Details on how to sign up to volunteer, for our events or others, are available in the Science Olympiad email from last week<https://lists.osu.edu/pipermail/preplabstudents/2026-March/000344.html>.

General Chemistry Prep Lab • Department of Chemistry and Biochemistry • THE Ohio State University
preplabstaff at lists.osu.edu<mailto:preplabstaff at lists.osu.edu>

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/

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