how do i answer these questions about hydrogen bonding? so i know that H needs to bond with N,O, or F.1yr ⋅ anonymous-37490 ⋅ r/chemhelp
Can someone tell me what I did wrong? The answer is supposed to be 32.7L1yr ⋅ boba-bitch ⋅ r/chemhelp
What does these points mean? I’m from Chile and neither me nor my teacher know what are they4yr ⋅ Americio95 ⋅ r/chemhelp
Red circle is the answer; How come the group on the right side becomes in the plane of the paper instead of staying a dashed line?1yr ⋅ mavsman221 ⋅ r/chemhelp
Can anyone tell me why this is wrong? It’s one chlorine so it should be atomic.....3yr ⋅ VeganMomma123 ⋅ r/chemhelp
(1st year organic) Tried to make a somewhat comprehensive guide for myself to decide between Sn1/Sn2/E1/E2, based on a few resources. Could anyone be so kind as to read through it, and let me know if there's any mistakes, or anything I could improve upon? Thanks in advance!4yr ⋅ woshju ⋅ r/chemhelp
This was an cryztallization attempt of ascorbic acid (tablets) , what gone wrong?1yr ⋅ Evil_T0m ⋅ r/chemhelp
how to memorise 'common'?? formulas with a genuine passion and interest2yr ⋅ aspiringdental ⋅ r/chemhelp
The answer key said answer is D, I'm confused on how this is true. Wouldn't ionization energy trends make this false?1yr ⋅ Sholesj ⋅ r/chemhelp
is this allowed/ a thing? i’m super new to chem, and i’m not sure what this would be called. thanks for any help!4yr ⋅ birbadot ⋅ r/chemhelp
Confused about bonding/antibonding. I get WHY a bonding orbital and anti bonding orbital are called what they are. But I don’t necessarily get why anti bonding orbitals exist, and if we see them when we draw our hybridized structures like the ethylene pic attached.2yr ⋅ dawgtor_ ⋅ r/chemhelp
This is a picture of the galvanic element Walter White uses in Breaking bad to power his methlab. I need to calculate the voltage with the nernst equation. I’ve already got the reactions at the anode and kathode. Rest in comments.3yr ⋅ Kenchikka00 ⋅ r/chemhelp
Can anyone tell me what this chemical structure from an episode of Pete & Pete is?2yr ⋅ stintergalactic ⋅ r/chemhelp
Would this molecule be considered aromatic? How does the triple bond contribute to Huckels rule?3yr ⋅ Mr2945gc ⋅ r/chemhelp
This molecule was on a product for testing at work, any idea what it could be? A Google Lens search did not help me.2yr ⋅ ElJefe42 ⋅ r/chemhelp
Stoichiometry Flow chart for those who may need it. Got it from google.5yr ⋅ krazykris753 ⋅ r/chemhelp
I saw a calf tattoo in a video and was wondering which molecule it represents. It doesn't seem to be something obvious like caffeine, dopamine or serotonin.1yr ⋅ 7Dayss ⋅ r/chemhelp
Why does Kurkuma get dark red when added to an alkaline solution? (in this case baked Natron)4yr ⋅ ozzivcod ⋅ r/chemhelp
I've been trying to figure out what chemical this was for a long time now, but i can't seem to find anything which matches. It is similar to cobalt(II) carbonate in color but is soluble in water.3yr ⋅ SebTvHd ⋅ r/chemhelp
Is the question wrong or am I just stupid in chemistry????? Because the question says Sn2 and answer has Sn1 written1yr ⋅ Oddballcj ⋅ r/chemhelp
I found this plot of intermolecular distance vs potential energy on google, but am kinda confused why potential energy is positive first N then becomes negative.2yr ⋅ Emme10100 ⋅ r/chemhelp
I've just started learning how to name skeletal formula. Is this 2-dimethyl-3-methylbutane??3yr ⋅ Faris_Boss ⋅ r/chemhelp
Am I right to assume that this is a quartet and the smaller peaks on the left are just impurities? Can I just ignore them?3yr ⋅ chemnoobs ⋅ r/chemhelp
How do I name this using common system of naming? I know it’s called formaldehyde but why?1yr ⋅ MasterOfWudan ⋅ r/chemhelp
Out of a,b and c. Which is the most acidic? I think it goes a>c>b2yr ⋅ _furry_obliterator_ ⋅ r/chemhelp
When drawing an orbital diagram like the one pictured, is there any significance to the shading on the lobes? Could you show a pi bond connecting a shaded lobe and an unshaded lobe, or do they have to be the same?4yr ⋅ crystakat ⋅ r/chemhelp
I like it when stuff goes crazy on paper , organic chemistry is badass ( and that's just humble undergrad stuff )3yr ⋅ khaled_MHD ⋅ r/chemhelp
I think these are diastereomers. Enantiomers are non superimposed mirror images. Here the compounds are not even mirror images. So why does every answer say it is an enantiomer?1yr ⋅ atomiscz_2072 ⋅ r/chemhelp
Why is the highlighted proton more acidic? (Textbook answer says so) They both are on O and have resonance? I assume it’s something to do with the ketone attached.1yr ⋅ hella_cious ⋅ r/chemhelp
Why is this a chiral center? I can’t see 4 different connections.3yr ⋅ Choice_Geologist8605 ⋅ r/chemhelp
Help! Which type of hybridisation is this, and what are the angles between them. Also can someone explain this molecule to me please?1yr ⋅ Daki_pro011 ⋅ r/chemhelp
My buddy said this is anti-aromatic I said it was non aromatic because sp2 hybridized atoms are required. Wouldn’t Fluorine be sp3?1yr ⋅ Neonchemist69 ⋅ r/chemhelp
I was told all my resonance structures were incorrect on an Exam, the given structure is at the top2yr ⋅ Luffz_ ⋅ r/chemhelp
The epoxidation of this alkene produced diastereoisomer B as the major product, why? (More info in comments)1yr ⋅ shika03 ⋅ r/chemhelp
what does this represent / read? (got it from a set of random stickers)2yr ⋅ bartwomannn ⋅ r/chemhelp
For Question 7, the answer key is saying the answers is B however I chose C. Is this just a textbook error or could someone explain how its B?2yr ⋅ jayyyden11 ⋅ r/chemhelp
Is this molecule really a meso compound? I can't see the plane of symmetry3yr ⋅ czypsycebulowe ⋅ r/chemhelp
Writing formulas for ionic compounds. Why do I start off with 2+ and 2-, but end with 1+ and 1- in final answer?3yr ⋅ HealthInspecter ⋅ r/chemhelp
Shouldn’t density increase as the NaCl will no longer be dissolved since solution is saturated?3yr ⋅ savage123t ⋅ r/chemhelp
Help with identifying structure with 1H NMR, my analysis so far in the comment4yr ⋅ Addesi ⋅ r/chemhelp
How many electrons do you count here? And what would be the d^n count for Ni?4yr ⋅ neemo98 ⋅ r/chemhelp
Why is this carbon not a chiral carbon, with one h group one Cl one butyle and one ethyl group2yr ⋅ HornyCassowary ⋅ r/chemhelp
I don't want the answer, but we're working on ionic/polar rxns in acidic conditions and I have no clue where to start. Any help is appreciated.3yr ⋅ last_alchemyst ⋅ r/chemhelp
Why is A the most acidic compound? I know it's got to do with it's conjugate base being the most stable but why is A's conjugate base the most stable though?3yr ⋅ timeforclock ⋅ r/chemhelp
Did I correctly identify the functional groups in this molecule? No answer key to check with4yr ⋅ crystakat ⋅ r/chemhelp
I am unsure how to round this sign fig? What are the rules in this scenario?1yr ⋅ youdontknowmedudee ⋅ r/chemhelp
HCl NaOH titration curve - do you think my labels indicate the correct areas? Maybe 'end point' should be the next dot to the right? Thanks4yr ⋅ Lil-Maece ⋅ r/chemhelp
Why does the ozone lewis structure need a double Bond? It already has 8 valence electrons in this format and the charges stay the same2yr ⋅ Isthistherealife01 ⋅ r/chemhelp
Chemistry people of the internet, I’m trying to figure out what this symbol means1yr ⋅ stickninja1015 ⋅ r/chemhelp
Is this a polar molecule? Appeared in a test in Lewis structure form and I insisted it was polar, but teach said it wasn't4yr ⋅ PsilocybeCapra ⋅ r/chemhelp
In a sample of carbon dioxide, there are 45 g of O. How many molecules of carbon dioxide are there? This what I have but I don’t know that my conversion factors are correct 😕1yr ⋅ Educational_Duck_927 ⋅ r/chemhelp
Recommended programs for drawing lab apparatus, similar to the following picture?4yr ⋅ rickson56 ⋅ r/chemhelp
How are the structures circled in blue nonaromatic while the structure circled in red is aromatic?1yr ⋅ Madaleemaj2004 ⋅ r/chemhelp
Hi! I am doing test corrections, and got this one wrong. I chose MgF2 because I thought that the Mg-F bond would be ionic, and the F-F bond would be covalent. I don’t understand why NH4Cl is correct because there don’t seem to be any ionic bonds. Could someone please explain why? Thank you!2yr ⋅ tytyty5x ⋅ r/chemhelp
Need help finding the common name and IUPAC name for the compound surrounded in red1yr ⋅ Dizzy-Winner-2527 ⋅ r/chemhelp
