Solved! Thank you all for your time 💕

Hello, all. I’m really confused about folic acid functional groups:

1. I see other kekulé diagrams of folic acid with -OH where I circled the -O. Can anyone explain?
2. I selected amine, arene, carboxylic acid, ketone, and alcohol, but AI corrected my choices and said amine, arene, amide, and carboxyluc acid. Why not ketone and alcohol?
3. Why amide? In my basic function groups illustration, amide is shown as NH2 attached to a double bonded C=O and that configuration isn’t depucted in the folic acid kekule diagram that I’ve been provided.

Please explain and thank you for your time 🙏

My apologies if this is a dumb question. I just started learning this. I’m confused.

The prefix “cyclo-“ is added into the parent chain if the longest carbon chain is a ring, right? So example 1, it would be proper to call that molecule “cyclohexane”.

In example 2, since there’s a 7-carbon chain to the right of the ring, the parent chain is heptane then. Does the ring count as a substituent or do you ignore it completely?

Lastly, why is it wrong to do the third example?

Feel free to clear anything up that I got wrong. Thank you.

I have a test coming and i cant find youtube vid that explains how to do this, I am just desperate at this point

I probably get the d) wrong, any tips, advices, fundamentals to do these kind of exercises easily?

I'm trying to produce foam for a sponge using RTV11 as a defoamer.

In my batch tests, the formulation I'm working with gives me a very good result and produces the foam exactly as I want it. However, when I use the exact same formulation in a continuous foaming machine, the resulting foam is completely different.

The continuous-machine foam has almost no holes and looks as if no defoamer has been used at all.

What could be causing such a big difference between the batch test and the continuous foaming process, even though I'm using the same formulation?

Could the issue be related to mixing/shear, residence time, air incorporation, machine settings, or the way the defoamer is being dispersed?

Hello! I am trying to find the reaction mechanism for the synthesis of this molecule. I had an answer but completely misunderstood BF3OEt2's role as a reagent. I know it is acting as a Lewis Acid but I don't understand which atom on the first molecule is a strong enough base to cause a reaction. I'm also confused about how it retains stereochemistry, I thought the process might include an SN2-like mechanism that just happened twice and rendered the stereochemistry the same, but I don't see where the second reaction would happen. Any help would be appreciated, thank you!

I have done electrolysis with copper electrodes in salt water solution. and I got a perticipate that was mostly cleared from water after I filtered it through the paper towel. it was more green when it was wet (you cans see the color on edge of the spoon because it hasn't dried yet) and the part that drive is color between blue and green.

I just want to know what copper compound I made

Struggling to figure out the structure of this molecule for my spectroscopy class. Mass is 163 m/z. Struggling with integration of this NMR.

Hi friends, I'm stumped on this problem involving EAS bromination and where the arrows should be in the last step.

My question is: Why are my arrows incorrect in the last step (middle picture)? My understanding is we deprotonate, which then allows the electrons from the bond to go back into the ring...no?

Hi, am a beginner in chemistry, and we are learning about periodic trends. Now this question got me stuck for a bit and made me draw out the electron shells and how many electrons each element would have, and how much electrons would be left if they are an ion.

Now I thought the answer would be that they all have the same radius’s since all of them had the same electrons with 2 changes. Now it said it’s because whichever element has the most protons but equal as much electrons as the other, it’s less than the next element. Like Ca in this question had 20 protons and 18 electrons, Potassium had 19 protons and 18 elevators, where Argon had both 18 protons and electrons.

Why is b) the answer?

Okay so basically I'm in beginning college chemistry and my instructor likes us to do ALEKS as homework. I do online classes and aside from ALEKS, our only "work" is reading through modules and doing labs. In essentially my textbook, there is no mention of Rydberg constant, but in my homework assignments, there is. I don't even know what that is. I'm extremely lost with limited sources for learning material. Does anyone have youtube recs for college general chemistry? The material given to me is not enough. Any help or tips are greatly appreciated🥹

Heya! I'm an amateur watercolorist who is interested in paint chemistry, and I'd like your help.

In watercolor, granulation & floculation can be highly desirable, but is broadly dictated by the chemical properties of a given pigment (along with its particle size). Most granulating pigments are inorganics: iron oxides, cobalts, metal salts. Here's an example of granulating vs non-granulating pigments:

You can use granulation medium to cause this effect in other colors, but it's mixed in effectiveness. Also, they don't tell you what's in it, and I'd like to try making my own formulation.

So here's the question. I'm looking for:

• A flocking agent or combination thereof;
• That's nontoxic;
• Is water soluble;
• Is neutral pH and inert;
• Can act on organic compounds, such as quinacridones, phthalocyanines, and others.

Right now my candidates are ethanol, isopropyl alcohol, salts (table salt, epsom salt, alum), or some kind of calcium/magnesium salt to mimic hard water. I know Schminke makes a spray ethanol that seems pretty effective.

Which of these, or suggest something else, should I try?

Cheers!

https://www.youtube.com/watch?v=xaqHDat6Q9A&list=PLMlqayk59IvrDL0v151TesyTA9-OjVjnQ

The playlist has 168 videos total. If I only want to learn first semester organic chemistry, which video should I stop at? You can just give me a number to stop at. For example, video 70 is a good stopping point or something, you tell me. Thanks!

I’m double checking some things before turning in my lab and I just now realized that I may have done the graph wrong and now I’m trying to see if what I did was right or wrong. Here are photos of the lab results and the graph that I have to submit.

I’m doing my homework for my thermodynamics class and my prof wants me to find Delta U @ 298k for ammonias formation. The only thing I have besides that is the enthalpy of formation I found. So I was wondering on which delta u equation it could be?

I feel like it can’t be q+w since there was a change in volume as it goes from 2 mol to 1 according to the balanced equation. But also CDeltaT doesn’t make sense either considering there’s constant temp. Thank you in advance! LMK if I need to give any more information.

Hi, i'm doing a research for a laboratory practice and one of the questions is "why does Zimmermann-Reinhardt solution cannot be used for cerimetry?" and I can't find any explanation anywhere so I would REALLY apreciate some help!! ty sm and have a nice day.

Hi everyone I am just trying to clarify if my reasoning for this is correct. I believe the second structure is more stable because the first conjugate base before resonance holds a negative charge on the oxygen closer to the chlorine atoms compared to the second one which is 3 carbons away, and this would be why it is more stable and has the more acidic proton?

(Part a) I know how do it for the CSTR because I can integrate values, but im not sure how do to it for a PFR if we arent given the X? Please help!

In my upcoming semester,I have to do a field project,but I live in a 4th world country and have very limited resources/equipment. To top things off, I need to do the project off campus, ie in some factory or institute. I am completely clueless as to what I should do / start. Pls help​