Phenolphthalein with alkaline solution and magnetic stirrer (it was a slo mo)
Phenolphthalein with alkaline solution and magnetic stirrer (it was a slo mo)
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Friday, February 26, 2021
Nikola Tesla
I do not think you can name many great inventions that have been made by married men
Albert Einstein
Imagination is more important than knowledge.
Fun fact of the day: phenolphthalein is a potent laxative and used to be the primary ingredient in Ex-Lax.
Titration is fun
I use bromothymol, thymol, bromophenol, and phenol all the time at work.. super useful in titrations for everything from acid content to HCHO.
Isn’t it supposed to be a really light pink?
That’s a giant stir bar for that beaker hahah
I’m doing titrations right now and they suck. My TA expects pristine accuracy but on a tertiary titration some shit’s going to be messed up.
If this is slow mo then that droplet must’ve been heavy as fuck
Titrations, fucking titrations.
I had a lab practical last semester which was like our version of a test for that class, where instead of working in groups we were all on our own that day and we couldn’t talk (like during a test)
So, I almost critically fucked up a few times. I:
1. Almost put the acid I was supposed to be titrating in my pipette thing. I almost didn’t notice until right before I put it in
2. I forgot to add indicator during one of the titrations. Luckily I wasn’t even close to the endpoint.
3. I forgot to start the stir bar. Again, luckily I wasn’t near the endpoint.
If I hadn’t gotten the first titration right, though, I wouldn’t have had reference for where the endpoint was and I would have been a lot more screwed. Ended up getting 59.5/60, because of all things, I forgot my units on one or two of the measurements. Oh well.
I used to do these daily.
I feel like we used the exact same chemicals for our recent science experiment. Same concept. Basically everyone grabbed a beaker with liquid in it and exchanged there liquid with 3 people(using droppers). At the end my teacher came around and dropped something in the beakers and if you exchanged with the infected person or a person they had previously exchanged with yours would turn pink. Less than 25% didn’t have pink.
Wtf how does a magnetic stirrer work I have never seen one of those
OVERTITRATED! DO IT AGAIN.
I too took high school chemistry.
Oh, I think I had a titration lab practical once. It’s stressful because I’d jerk my hand loosening the burette, and the base would just pour out (luckily I never titrated way past the endpoint).
And if you’re looking just off center off the gif when it loops, the solution turns light green for a moment!
Note: I didn’t expect a spinning pink solution to blow up, but here we are…!
If anyone wants the actual slow motion video, I might be able to send it.
Foothill?
Why no gloves,😣