NielsBohron

What do these pictures have to do with round bottomed flasks?

Autoionization and the reverse reaction are constantly happening in water, and when the reaction is happening at the same rate forward and backward the system is said to be “at dynamic equilibrium” (aka, stuff is happening, but there’s no net change)

In pure water, the equilibrium concentration of hydronium and hydroxide are equal, so it’s said to be neutral. At room temperature, that equilibrium concentration is approximately 1*10^-7 moles per liter, which gives a pH of 7 (since pH is defined as the negative log _10 of hydronium concentration)

Kinda, but not really. Deuterium exists naturally in more or less the ratio as it has since the solar system first coalesced.

Also, deuterium is a component of heavy water, but the term “deuterium” actually referred to the specific isotope of hydrogen where the nucleus consists of one proton and one neutron, as opposed to a single proton (which is the more common isotope)

Interestingly enough, in other solvents a neutral pH is going to be a different value. IIRC, ammonia has an autoionization constant of 10^-30, so a neutral pH would be 15

That’s why the meme works. It’s not because water autoionizes; it’s because water is amphoteric, meaning it can act as either a Brønsted-Lowry acid or BL base depending on what what it’s reacting with. Put water with ammonia, and water acts as an acid. Put water with acetic acid, and it acts as a base

Source: I teach college chemistry

Close, the standard IUPAC acid nomenclature would be “hydrohydroxic acid”

Ibn Al-Haytham be with you

Edit: and I suppose the traditional response would be “and Popper with you”

Get this lizardposting outta here

I don’t even ever get the physical withdrawals or any noticeable effects, regardless of how often I do or don’t drink it. So, since my partner really does need the coffee first thing in the morning and I’m making it anyway, I usually have a cup because I like the taste and ritual. But when she’s out of town or getting coffee elsewhere, I hardly ever have any caffeine.

The exception is when I was taking Adderall every day, I really did feel some effects from the caffeine, mostly potentiating the amphetamine. I do miss that aspect of being medicated

Made well I enjoy the taste, but it’s ever been good at keeping me awake or making me productive.

Same. I eventually figured out that this is likely a symptom of my adult ADHD, and I either need unhealthy amounts of coffee or something a little stronger

Is that a Stanisław Lem reference in the wild? Will wonders never cease…

Truly a brand new sentence

Looked like it had just come back from the ethereal plane, its eyes were so wide

Well, yeah. If I got chased down and caught by a predator 4 times my size, I’d be a little wide-eyed, too.

You can tell that this wasn’t written by a parent. Parents know that the small child is already covered in jam, despite there being no jam at the BBQ

“Would you fuck me? I’d fuck me”

chemist: da fuq those ecologists doin’ over there?

Yeah, I’m gonna need some more of these to surprise my science-y spouse on Friday

Man, I just started Man on the Inside by Michael Schur with Ted Danson, and it’s pretty good, but it’s not The Good Place. Looks like it’s time for another rewatch

Folks, if your boo:

• Calls their personality quirks “functional groups”
• Tests you by demanding you elucidate their mechanisms
• Has unexplainable peak splitting between 0 and 10 ppm

That’s not your boo; that’s an organic chemistry

I’m going to make a generalization and say that someone in a PhD program (any PhD program) is more practical and better at handling financial planning than 95% of all professional athletes.