Hello, I am very new to chemistry and just trying to learn on my own currently. Where does the extra carbon come from? Am I missing something crucial here? Thanks.

How do I figure out its magnetic property, shape, and hybridization using Crystal Field Theory (CFT)? I know that whether a ligand is strong or weak field affects these properties. How do I tell if a ligand is strong or weak? I know the spectrochemical series, but where in the series can I find the distinction between strong and weak field ligands?

Does anyone know any tricks to easily get the magnetic behaviour(para or dia), hybridization and shape?

i'm currently preparing (simplified) msds' for a practical assignment involving chemical equilibria in which FeCL3 (10mL 0,0025 M) and KSCN (10mL 0,0025 M) get mixed together. My question is whether it creates FeSCN^(2+), Fe(SCN)3 or both (in case both are prevalent enough to warrant an msds). I'd assume I have to work with FeSCN^(2+) since it's mixed in a 1:1 ratio, but are there perhaps properties that would result in Fe(SCN)3 being made instead (e.g. manipulation of heat, or if I were to mix it in a 1:3 ratio)?

All the examples in the notes and online start with an OH group already. I’m not sure if I’m supposed to hydride shift, and where/when that would occur.

https://preview.redd.it/6vkjd5eq3wge1.png?width=874&format=png&auto=webp&s=9f1b1b6c4ea3f7620116206aab7a8b39a53fa0d9

Just please explain in these types of problems what makes it diasterotopic, what makes it enatnotopic, and what makes it homotopic.

Def spelled some of them wrong above* TY tho

Okay to preface I have been stuck on trying to understand this for a while now.

https://preview.redd.it/mmfx7jjguvge1.png?width=1450&format=png&auto=webp&s=9cfce425972d19dd401b39a4732be14177585b7b

This is the question above and I am confused on why the value is 6.8 for B. I put 7.2.... How do carbonyls affect these vinylic H's. Also I am confused how is CH3 a doublet. Aren't its neighbors Hc and Hb so wouldn't it be (1+1)*(1+1). What am I not understanding here. Same for C and B on why one is a doublet and one is a multiplet.

Btw this was another problem.

https://preview.redd.it/zetekb2quvge1.png?width=1081&format=png&auto=webp&s=c436ab5dbe755f65285d7f459423e87749899816

where the C-H was 7.1

PLEASE CHEMISTRY GURUS I NEED UR HELP

I'm going to get my first glassware this month and I was wondering about what I should get as the basics of my amateur home lab.
I'll get the basics like beakers and test tubes and so on, but I want a second opinion on what I should get/shouldn't get and some advice.

I have my first test for inorganic 2 soon. I'm completely lost in this class. We are working on complexes, ligands, alkalis, alkaline earth metals, transition metals, and molecular orbital/energy diagrams (eg, t2g, etc.. I don't know what these words mean, that's how bad it is). I'm a chem major and usually I find chemistry to be pretty intuitive. But for some reason, I can't rationalize or retain any information for inorganic specifically. For example, charge rationalization made total sense to me in organic, but balancing the charges (and/or oxidation states) on inorganic complexes is just so hard for me. Maybe because my professors so far have been very disorganized. My professor was so all over the place that I stopped attending class, something that I never do (I know, bad decision). I would really appreciate if someone could give me tips/resources for any of these concepts. I will literally be thankful for anything.

if you increase the pressure of a system, the equilibrium shifts to the side with fewer gaseous moles, but i don’t understand why? and how does this keep the value for Kp constant?

I know the resulting end product, but my curiosity is getting the best of me. Can someone show me the individual step-by-step process from the start to the end? I don't want to just memorize the final answer.

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I'm adding error analysis for the first time for lab assignments, and I need some help. I collected some results from a conductivity meter, which had an error of 1%. So ive got a result±the_error, right? I then need to do calculations on the result obtained, eg - 1/result, or result x another_number.

Do I do those same calculations on the error as well? Because when I do the 1/result and 1/error calculation it makes my error really really big, like a hundred times bigger than my actual result... its making me question whether I'm doing these calculations right or whether I really messed up this lab assignment.

Hey everyone,
I’m currently retaking General Chemistry II for the third time, and I keep struggling with my exams. I understand the material when I study, but when I get to the test, I either forget which equation to use, overthink answers, or make small mistakes that cost me points.

The equations are usually provided, but I forget to check them or second-guess myself too much. Also, I sometimes redo math problems multiple times and get different answers, which throws me off.

For those of you who have been in this situation, what study techniques actually helped you improve your test performance? I don’t just want to memorize—I want to actually get better at applying concepts.

Any advice or personal experiences would be really appreciated! Thanks in advance.

“I’m a chem major too”😭💔

can you guys help me with my lab report? my answer is 2-bromo-3-hydroxy-2-methylbutanoate but i think its wrong.

So I know water is a good solvent for benzoic acid at high temps but if i want to recrystallize as it cools off would RO water be better? I don't know if there's any downside since they're both water?? But RO water is purer than regular water but would that cause issues with recrystallization??

My homework is asking me to draw the lewis dot structure for C6H12NH2 and for some reason I can NOT figure out how to make this compound. I've tried every which way and the only way I've gotten close is this structure or making a Texas carbon. Can anyone point me in the right direction on how I can draw the lewis dot structure for this compound?

Hi everyone! I’m currently learning spectroscopy and my exam is Wednesday. My question is, is there any tips or tricks to be able to read an NMR and get the final molecule??? I find it a big struggle to make all the “puzzle pieces” and neighboring carbons, and putting them all together. Thank you!!!

So for a project i am reacting pinene with water and acid to form borneol in a reversible acid-catalysed reaction. Naturally this reaction is reversible, so in order to obtain as much borneol as possible i plan on removing it continuously form the reaction. Does anyone have any suggestions for how this could be done? For reference borneol is mildly soluble in water while pinene is barely miscible in water.¨

Any help is greatly appreciated!!!

Hi!

As asked in the title, can a molecule completely without polar covalent bonds be polar if it's unsymmetrical? I know molecules with polar covalent bonds aren't polar if they're symmetrical (eg. CO2 or CH4), but is the opposite possible?

I asked my chemistry teacher and she said unsymmetrical molecules without polar covalent bonds are still (slightly) polar if they have lone electron pairs (and the negative pole is where the most lone pairs are "situated"), but I can't figure out why this is the case?

Help is very much appreciated!

(also, I'm sorry if any terms are used incorrectly, my chemistry class isn't in english unfortunately so these are direct translations from our terms)

The chlorine here has 14 valence electrons. Is this because it is energetically "worth" it to expand over 8 VEs to not have any formal charges?

When I construct lewis formula should I generally rather go beyond 8 VE, than have a formal charge?

Does it make sense to accept more VEs as soon as you are at 12 because it again brings you closer to your next full set of 8?

I just study biology and am a bit confused right now.

https://preview.redd.it/svf191npkqge1.png?width=150&format=png&auto=webp&s=8a3ee354a8b5c0601e3b14b04077857d71ba225d

Oxidation. It's the process where a substance loses an electron in the form of hydride H-.

An Hydride has 2e and one proton.

Suppose NAD is used in some oxidation process. Then it becomes NADH. Now it carries exactly two electrons, taken by H-.

But what about FAD+?

Suppose it's used in some oxidation process. It becomes FADH2. Why does it carries just 2e? Since 2 H- have been added to fad, shouldn't it carry 4e, so two per Hydride?

I currently need to make a short review article on natural product synthesis, and the amount of chemical structure I need to redraw is a bit much. I wonder If there is a way around? Replies are appreciated!

I was looking at example of NH3 reacting with Boron Triflouride where Nitrogen sort of donates its lone pair of electrons in a coordinate covalent bond. My chemistry text says "The nitrogen end of the bond has become positive because the electron pair has moved away from the nitrogen towards the boron - which has therefore become negative"

But isn't nitrogen more electronegative AND the bond is covalent so why should nitrogen have a more positive charge? I googled this question but couldn't find relevant answer with no explanation in my book.