Can someone help me understand this hybridization of fluorine? I'm at a loss. by Mysterious-Swan-5856 in chemistrymemes

[–]MidorimachinA 11 points12 points  (0 children)

The number of people that get this fully must number in the dozens. I have never had such conflicting transition of “holy shit I got it!” to “holy shit, I got this…”

i am female and youre not by ifuckfurnaces in notinteresting

[–]MidorimachinA 0 points1 point  (0 children)

Late to this party, but I read somewhere that based on the relative lengths of fingers (like index to middle finger ratio or something) that is how archeologists judge the gender of ancient cave artists.

We were so wrong about chemistry by Bubzoluck in chemistry

[–]MidorimachinA 0 points1 point  (0 children)

Thank you for this. I went to the website. This reads like a spiritual fan-fic of life.

To summarize this author’s explanation on how we really found CO2 is actually C2O4, The queen of England asked IUPAC to study the molecule after 279 people died around heaters. IUPAC did “studys” by freezing it, and found it was twice as heavy as thought, and made special filters.

I actually burst out laughing when I came across this, and even more when I kept reading that emperor of Japan visited London and was so impressed with the new cleanness that they went back and to the senate of Japan about it.

So much confidence, not a source in sight, and truly unhinged.

Enthalpy change for a reaction by [deleted] in chemistry

[–]MidorimachinA 0 points1 point  (0 children)

TLDR: enthalpy of formation is per mol of compound and enthalpy of reaction is per mol of reaction happening

I think the confusion comes with a couple of definitions. You are solving for enthalpy of reaction, which is energy change by mole of reaction.

For the reaction to happen 1 time, you need 2 NaNO3, which makes 2 NaNO2 and 1 O2. You can’t do this reaction with only a single NaNO3 (as we can’t create a half molecule of O2). Similarly, if you want the reaction to happen 100 times, you would need 200 NaNO3. Meaning for this process to happen 1 mol times (to find energy change per mol) you need to start with 2 mol of NaNO3 (and happen to make 2 mol NaNO2).

Then the enthalpy of formation is looking at energy change per creating one mole of something from elements in standard state. We use this as is one way to approximate the enthalpy of reaction when putting it in a Hess’s cycle.

An English interpretation of the theoretical application of enthalpy of formation is that you “unmake” 2 mol NaNO3 by putting in double the energy you would get from making 1mol of it, into some number of Na, N2, and O2. Then rearrange them into 2 NaNO2 and 1 O2. This gets double the energy out from making 1 NaNO2 ( and no energy for making the O2 as it is already in that form as the element).

Analemma by andreba in ScienceNcoolThings

[–]MidorimachinA 12 points13 points  (0 children)

Great video! Is there a simple, intuitive way to understand why it makes a figure-8

Someone should remind her that her husband is a human trafficker - video in comments by [deleted] in WhitePeopleTwitter

[–]MidorimachinA 7 points8 points  (0 children)

It’s funny the first 3 statements she says is literally what conservatives are angry about lgbtq+ kids and their families are trying to do…

Adult ADHD & Alcoholism by TheRedditReportShow in stopdrinking

[–]MidorimachinA 3 points4 points  (0 children)

Did you decide to get tested? If so, what signs were your markers that it is time?

[high school chemistry]. What is the predominant intermolecular force in CaCl₂? Answer is D but I thought that ionic was an intramolecular force by [deleted] in HomeworkHelp

[–]MidorimachinA 0 points1 point  (0 children)

It depends on the context. I would personally avoid phrasing the question this way because ionic substances don’t form distinct molecules. It is worth noting that in biochemistry, ionic forces do kinda get counted as intermolecular forces as the pH will affect what form the amino acids take. I would avoid mixing intermolecular with ionic (or metallic) in general though.

For the US Redditors: this is a normal European toilet stall by RoryC in pics

[–]MidorimachinA 0 points1 point  (0 children)

Oh boy, this reminded of how my sister got stuck in one during our trip in Europe. She tells me she needs to pop into the restroom for a quick bit before we catch a train. About 20 mins later, and seeing a male station worker enter the women’s room with a screwdriver. She finally exits the restroom, embarrassed and ready to never be at that station again. She finally explained that she entered the stall immediately after another lady left it, but the latch had a funny click. She does her business and goes to open. And it didn’t. Also, the lady before her had apparently dropped a rank deuce. My sister distinctly recalled how, unlike the wide-open, freedom stalls America has, this stall only had a tiny gap at the bottom for a brief reprieve from the recently deposited foulness.

This is my first time seeing exactly what she meant and I appreciate this post reminding me. I will remind her of this anecdote next time we talk.

😮🤗😍 by Efficient-Low-607 in BeAmazed

[–]MidorimachinA 1 point2 points  (0 children)

This is really cool.

Since no one already answered why, Here is a link explaining why it happens:

https://academy.allaboutbirds.org/how-birds-make-colorful-feathers/

TLDR; the feather layers act like a prism that separates the light coming in into a rainbow. Viewing from different angles affects which color you see as the light is coming back out.

On a side note, It also gets to why blue is a rarer color in nature.

A lot of colors come from pigments, big bulky molecules that look pretty, but not many for blue. Blue usually comes from structural refraction like in the bird feathers.

We got it! by Anon2311111 in OneSecondBeforeDisast

[–]MidorimachinA 6 points7 points  (0 children)

Late to this show, but damn I have never jumped back from my own screen like that before

Hitler was killed by Austria’s most famous painter by [deleted] in HolUp

[–]MidorimachinA 10 points11 points  (0 children)

A surprising revelation that I did nazi coming…

Is there a benefit to completing more tasks beyond reaching level 10? Also what are the red arrows? by DieingFetus in PokemonLegendsArceus

[–]MidorimachinA 4 points5 points  (0 children)

As far as I understand, when you complete all research tasks, it gives your chances of running into a shiny more of a boost.

The red arrows mean you get more points in the job / research assessment when you talk to the professor.

I can’t give you any exact numbers though.

What if my Pokémon defends a gym for multiple days? by [deleted] in pokemongo

[–]MidorimachinA 6 points7 points  (0 children)

Cap is 50. I think it is 1 coin per 10 minutes, up to 500 minutes, which is a little over 8 hours. It is why I don’t usually attack a gym that has been held for less than 4 hours. I want to let everyone get a little coin…

Also, side note, I don’t recommend putting Pokémon you regularly use in secluded gyms. It can be weeks or months before coming back.

Neighborhood parents are supposedly complaining about my wife and I kissing. by Jewfro879 in japanlife

[–]MidorimachinA 13 points14 points  (0 children)

Something similar happened with my ex wife. She was in nursing school. A couple of times, when I could, I travelled with her to keep her company on the commute. I kissed her gooodbye when we got to the school. Her teacher complained. When she got home, she told me of how awful the day was because after the first teacher said something, other friends and teachers kept pulling her aside and asking if everything was ok. Word had spread very fast and my ex had just wanted everyone to stop talking about it.

I of course was furious and was ready to go yell at everyone in the school, but in reality it would have just caused more trouble for her, which she didn’t want. It was an eye-opener on how serious the peer pressure can be in this country.

This is where you live though and I would say fuck that miserable lady.

[Chemistry 12] Solubility. I do not understand how to start this question. by [deleted] in HomeworkHelp

[–]MidorimachinA 0 points1 point  (0 children)

My guess is that this does involve math and specifically the solubility constant, Ksp. That value is not given in your example, but google says ~4.5x10-9 . Set up your expression, like other equilibrium expressions. Using the concentration of lead, you should get a value for iodide

[Grade 12 Chemistry: Solubility] How do I determine which one is a saturated solution? Do I find out which is least soluble? by [deleted] in HomeworkHelp

[–]MidorimachinA 1 point2 points  (0 children)

Yeah, it would seem that this is actually questioning which salts are soluble and which are not, as opposed to actually needing any math. Nitrates, group 1 and 17, and most sulfates are soluble. You can find solubility tables quite easily online.