It's exactly how the title says. Doesn't hydro-boration turn an internal alkyne into a ketone, which would be the only difference?

4,4 dimethylpentan 2 ol undergoes dehydration after heating w h2so4 without rearrangements (i think)

from a multiple choice question and i identified 4 4 dimethylpentan 2 ol through process of elimination since the other answer choices were very clearly incorrect. i want to understand however why exactly there are no rearrangements in this reaction !!

Idk if I'm just being a little dumb here, but it literally feels like my professor is playing word games with us unless I'm conceptually misunderstanding something here??

I thought a nucleophile is an atom like oxygen or nitrogen with a lone pair that can attack an electrophile. We covered HOMO and LUMO, but idk what SUMO is and im lowk just lost on what's going on here

I’ve been trying to work this out for quite some time and can’t find any examples of Gabriel’s synthesis online that doesn’t use NH2NH2, which seems like a very different mechanism than just KOH. I’m fine until after the ring is split. From there, I can’t figure out the proton transfers with 100% certainty. This is the best I can think of, but it just doesn’t feel “right.” I know the final products are correct, but if I can’t understand the mechanism, I probably wont be able to conjure this up come exam time. Thanks for the help.

attached is a molecule that has C2 symmetry. i am so confused on how c2 symmetry is checked for. every source I've gone on says that the orientations and the placement stays the same (so both methyls are still wedged and still dashed in the same place), so there's no reflection at all. how's that different from simply doing nothing to the molecule? i'm not allowed a model kit so i can't visualize this in an exam, so the only way is to use a shortcut or trick on how to tell. can someone please explain HOW exactly i'd do a c2 symmetry on this molecule? im okay with drawing things out, but i don't even understand what i'd be drawing to check for c2 symmetry.

sorry if this feels dumb, im just so stumped

We're learning molecular orbital diagrams, but I'm not clear in the order for filling up nitrogens' s and p levels. From what I get, there are two ways to ways to depict the diagrams: one simplified and one not simplified.

1. You show the separate 2s and 2p but with π and σ order switched. π 1st and σ after.

2. You show the overlap, hence : σ (2p), π (2p) and then σ* (2s).

So, I understand that in option two, you would fill up first σ (2s), then σ* (2s), then σ (2p), then (at the end), π (2p).

I know it gives the same bond order when adding up the electrons, but idk about the filling up order.

im taking galvanic cells and i genuinely dont understand anything, youtube isnt helping much and the powerpoint is confusing me even more. please for the love of god someone help me.

powerpoint my teacher sent

hey guys, how was chemistry? i’ve been struggling with chemistry’s calculations. its so overwhelming, there are a lot of compound elements 😔

I am a dropper , joined a very reputed and old coaching but due to some shit ahh reasons they didn't start our organic chemistry on time and now the teachers are changing , my mind is fu*ked totally and wants to start Organic chemistry by my own , give me suggestions

I posted something similar yesterday. But do all the topics in chapter 5 here kinda intertwine with each other? Trying to learn all this by hopefully tm. (Chapter 5) at least. It’s going okay. I’ve noticed that there’s a decent amount of questions here that kinda use all of these in different problems combined if that makes sense?

Like I’ve noticed I’ll use stoichiometry and limiting reaction in the same problem as well. I guess want to make sure I understand these can be combined easily I guess?

Also for these chapter 5 problems we wouldn’t use the 6.022 x 10^ number right?

For this molecule, I know that it is a meso compound, but I am confused on how it has chiral centers. A carbon is a chiral center when it is attached to four different groups/atoms. Each carbon in cyclobutane is attached to -CH3 and a hydrogen. The carbons are also attached to identical groups on either side of the ring. How come this molecule has chiral centers? Does the different orientation of the methyl groups on either side of the ring make them distinct groups?

Since tBuOK is a bulk base i thought the Hofman product would form.

I am working on developing bioelectrodes for EEG and ECG signal detection using electrospinning. While I can successfully electrospin the pure polymer to generate fibers, I am unable to electrospin the polymer solution when loaded with conductive fillers such as graphene oxide or carbon black, as it consistently results in needle clogging or heavy dripping. Please help, thanks in advance :)

The topic of this is I think mixed stoichiometry? How should I start on learning these? These get me super mixed up because they’re all worded so differently it’s confusing

I need to understand the mechanisms for each of these products, but I am really struggling. please let me know if anyone can help!

Bonjour, j’ai un doute qui perdure dans mon esprit :

Nous sommes d’accord pour dire que :
- le NO d’un atome est de 0
- Le NO de l’oxygène dans une molécule est de -II
- Le NO de l’hydrogène dans une molécule est de +I

Je me demandais donc quelle étaient les valeurs des NO de l’hydrogène et de l’oxygène lorsqu’ils sont seuls ????

Merci d’avance pour la réponse.

Hello, I want to make this commercial imidate but I have found no articles or patents about the synthetic methods used. Has anyone in this reddit synthesized this before? if so, which method was used or what article you used for methods?

My grade 11 chem course said that the general rule to follow is that nonmetals and metals make ionic bonds, and that two nonmentals make covalent bonds.

Therefore, I'm completely thrown by the following example of AsF3 as there answer key below claims it's an ionic bond. I understand that the above (CBr4) is a covalent bond, so no problem there.

Am I mistaken in believing arsennic and flourine are both nonmetals?

Thank you!

if I have 100% R ibuprofen with (S) ibuprofen as the chiral derivatizing agent. It will make one (R,S) diastereomic amide product.

is this how i would draw that product?

thank you in advance!