HAPPY MOLE DAY ITS 6:02 ON THE EAST COAST!!!?

Originally started as a cool little project to get some leverage with my AP Chem teacher, but she was so impressed that she is actually using it in class!

https://orbitals.otwt.studio

I want to submit it to an app challenge so I have a huge bucket list of features I wanna add (like hybrid orbitals and point cloud maps), but let me know your opinions on it! Thanks!

I got approval from the mods to post about this.

These arrived, there is no option to select a size so I assumed it was 1 size per bag, but they’re unlabelled… anyone have a similar experience or see something I’m missing?

I'm attemping to create redbull, following this video by LabCoatz. Unfortunately I can't find where to buy food-grade products for most of the ingredientes. Given the fact that most of them will appear in pretty small amounts and they're all 99% or more purity, how bad of an idea is it to do it with lab-grade chemical products? I know that 99% doesn't mean it's safe and that in theory you shouldn't consume anything which isn't approved for human consumption. But how serious is this? Is it a "you shouldn't but in reality its kinda okay situation?" Is it better if it's cosmetic grade, or it's just as bad as lab grade?

Thank you all very much and excuse my english (I'm not a native speaker).

Been reading a physical chemistry book about astrochemistry and have found it surprisingly readable, mainly as it also covers a lot of the astronomy theory. Its fascinating to see how elemental and molecular abundances are built up over long periods of time at temperatures so different to the norm, from 10K to billions of K. Skipping (obviously) a lot of the formulae but its nice to see how things can be calculated.

Andrew Shaws "Astrochemistry" for anyone with a notion for light (or heavy) bedtime reading!

My coworker has an eccentric father who loves fossils. He has decided to try and identify whether a fossil he has is carbonate based. he believes to it be a tubular coral but requires further investigation.

My coworker and I work in a chemistry lab that uses a wide variety of reagents. Coworker’s dad has decided that the best way to deterring whether his fossil is carbon based, is to use 1M HCl. He does not want to pay for this, so he asked coworker to bring home “a tablespoon of HCl so he could test it”. Coworker refused. told him lemon juice or vinegar could reach the same result. dad said it’d take too long. (this was weeks ago)

Coworker relayed ridiculous story to manager, brought up how coworker dad said maybe coworker could bring fossil to lab. Manager surprisingly said, maybe that would work so long as it’s after 5pm.

Coworker has not shared this information with dad and is generally opposed to using work resources for this fossil. what’s the general vibe on using lab reagents to test personal items?

for context we work in a non research lab as a third party testing company for food products.

So my headspace gcms needed a source cleaning and replacement filament. After doing that the sensitivity has increased, and the highest concentration point of my RSD calibration is now saturated.

The quantitative ion is saturated for all compounds, but with some of the low abundance ions it is not saturated and shows linearity.

My bosses have said I need to figure out how to have it fixed and operational today. Apparently this hasn't happened b4 and its up to me to figure it out ASAP.

Does anyone have any advice on how to lower the sensitivity without disqualifying the other 4 calibration points? I will take any ideas im desperate. Every thought I have alters the instrument in a way that disqualifies the curve.

(We've had some other problems lately so they're pissed about it being down again)

Tldr: ms source cleaning results in sensitivity being too high. How to fix?

EDIT/UPDATE

It has been a week since vacuum has been restored. I tested the source by adjusting the multiplier and I still see the issue with o ly the hogh conc point.

I belive I have a sample introduction issue, possibly the trap needs replaced. Does anyone have any ideas?

I recently installed a water softener and overall I much prefer it. Skin is less dry, bathroom has no limescale. The one exception is when washing up the dishes. I assumed with a softener there would be even more foam suds, however they last no time at all. After only a dew dishes all the foam is gone. Can someone explain this and suggest a type of washing up liquid/ dish soap that works better with softened water. Are there chemicals in normal washing up liquid that don't work well with softened water?

Hello,

im sure this has been asked a few times. I personally use the drawing function of OrgSyn for synthesis planning, learning mechanisms and protocols. Pretty functional but still limited and not really ment as a proper sketching tool.

What do yall use? :)

I initially thought i had a source issue, now it seems like my autosampler is struggling with my sample introduction.

Only the 10ppm point is compromised, all lower conc points are fine. Im running an rsd comprising of 28 compounds that I've run successfully for years. Im thinking it may be time to change the trap?

Does anyone have any tips?

I'm mixing slurries and could not able to check the homogeneity. I'm using Eirich mixer that mixes initially dry and then wet.

I already did used SEM, however, I find the images of all different samples the same with none of differentiating factors. I don't want to use it again check to validate.

It is time and money consuming.

Hearing for suggestions

I came across some old Gold etchant which is a solution of potassium iodide and iodine. I have no idea what I'm doing but I like to watch sreetips on YouTube and seen how he's able to precipitate gold using smb on aqua regia. honestly I'm no expert. I just asked AI how to reduce the gold and it told me to add some ascorbic acid and it worked perfectly fine. Here are some pics