1485 best r/chemhelp images on Pholder | I need help with part c

I need help with part c

2mo ⋅ ⋅

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I’m confused how there are 6 carbons in the longest chain?

4yr ⋅

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I'm 80% sure this is correct

5yr ⋅

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How would you name this compound?

1yr ⋅

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I know you use henderson hasselbach. I just don’t know how tf to get the concentrations of the acid and conjugate base. Thanks in advance.

2yr ⋅

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Can someone help me solve this?

1yr ⋅

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Considering molecule 2 does not minimize formal charge while molecule 1 does, would these be considered resonance structures?

1yr ⋅

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is 2(z)-ethyl-6-ethyl valid as substituents? or have i messed something up severely

1yr ⋅

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I’ve been trying to teach myself organic Chem for a month, did I do anything wrong here?

1yr ⋅

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Need help identifying Peak at 69.23ppm 13C-NMR

1yr ⋅

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HPLC Noise problem. Any advice?

5yr ⋅

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Are these two reaction feasible or have i made a monster?

11mo ⋅

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Why is this the answer? Is it because Nacl is a solid and hence not included in the keq. So even if pressure increases from the water level drop we still can’t form more nacl?

2yr ⋅

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Why doesn't it completely react to form the product on the right, wouldn't the alkene be brominated to form the markovnikov product?

4yr ⋅

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why is benzene a substituent?

1yr ⋅

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I'm leaning towards aprotic, THF. But how would that even react with the carbonation? I can see a hydride migration to have the +ve on the secondary carbon. This is all assuming the Cl leaves? Idk

2yr ⋅

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What happened to the circled hydrogen?

5yr ⋅

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Orbitals question??

5yr ⋅

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What should be changed about this NMR sample to make the peaks more prevalent?

1yr ⋅

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I need help with 1 and 4. How do I know if something is soluble or insoluble in water? and what is number 4 asking exactly ?

5yr ⋅

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Why the C-H bonds also change in strength depending on the hybridization of C-C?

5yr ⋅

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I get how 1 and 2 are planar, but why can’t cyclohexane be planar too?

5yr ⋅

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What is she holding? Where can I find one?

1yr ⋅

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Is this a functional group with a name? I know it's close to being classified as an Alcohol, Ketone orAldehyde, but it is not quite any of those.

1yr ⋅

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Alkyl tosylates can undergo either SN2 or E2 reactions. In this example, I think the alkyl tosylate will undergo E2 because the leaving group is on a tertiary carbon. Am I correct? Thank you.

1yr ⋅

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Hey guys! I’m studying for an exam and this was on the study guide. I have no clue how to answer it 🥴

3yr ⋅

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I have an exam in 4 days and i’m really lost in these two exercises (1 and 3). If anybody could help me it would be really awesome and i would be forever grateful 🙏🏼

5yr ⋅

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Could this be a possible way to show that structure 1 and 2 are enantiomers?

1yr ⋅

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Any idea of mechanism?

1yr ⋅

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Help with chemistry I’m not really sure how to do e and f

2yr ⋅

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Help on this Kinetics problem?

3yr ⋅

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Did I do a mistake drawing the Hydrogen Bromide energy diagram?

3yr ⋅

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Can someone check number two for me. Prof didn’t post answer key yet

5yr ⋅

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Can someone help me understand how a and b were calculated?

2yr ⋅

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Found this at work. I have no background in chem. What chemical is this?

5yr ⋅

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What causes the Zn (first test tube to the left) to have a sort of rust on it after being put in copper(II) sulphate. Is it the presence of four oxygen atoms for the copper(II) sulphate?

5yr ⋅

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(I3)- Lewis dot structure. Why would this structure not resonate as I shown, sharing the center Iodine’s negative charge with the outside iodines?

4yr ⋅

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(Ionic equilibrium) Can someone please tell me how to solve this question ?

2yr ⋅

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How in the world does 2 translate into 2 in the ring flip in chair conformations? The axial to equitorial switch, and vice versa makes sense, but tt seems like it's completely moving to a different carbon rather than flipping.

1yr ⋅

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Need help with challenge synthesis problem

5yr ⋅

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Was confused about this question. I thought the answer was D because there is no COOH group, but I'm confused on it. Any help solving it?

1yr ⋅

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Could this molecule exist? The brown atom is boron and the bond between boron and nitrogen is a coordination bond.

5yr ⋅

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Can someone help me with this ?

1yr ⋅

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Can you help me find the incorrect IUPAC name for the organic compound. All of them seem correct to me🤔

5yr ⋅

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Need help with resonance structures! Can someone tell me why the second arrow points to the carbon on the right and not to the left? I understand it for the most part but I’m just a bit unsure as to why you can’t have the electrons on the other side.

5yr ⋅

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How would i remove the O- here

1yr ⋅

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Question for task The experiment was repeated using the following conditions. The mass and surface area of the magnesium was the same. The volume and temperature of the hydrochloric acid was the same. The concentration of the hydrochloric acid was reduced.

4yr ⋅

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I'd always learned that alpha was when the OH points up and beta when down but every example of cyclic ribose ive found has been the opposite.

4yr ⋅

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(A Level edexcel) can someone please explain the marking points for (b)(ii)? Especially the second and third line. The rate was measured by titrations of samples of the reaction mixtures. I’m a bit confused as to why the reaction being exothermic will lead to anomalous results. Thanks!

5yr ⋅

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why is the proton highlighted in red on the top left more acidic? i drew out the resonance structures for both conjugate bases

2yr ⋅

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Is this correct for symmetry point?

1yr ⋅

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IR spectrum help (more info in the comments)

1yr ⋅

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How to dispose of 800mL diluted KOH.

1yr ⋅

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Repost: Annoying Question

1yr ⋅

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What am I missing here? I'm about a week into OChem 1, and I cannot find a way for C to be bound to C with 3 methylene groups attached, let alone even having a carbon in this structure with 3 methylene groups, I always end up with a methyl group at the end. Thank y'all!!

2yr ⋅

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HELP: deleted my other post, i tried to answer this my guess is 4-fluorocyclohex-3-enoic acid. If it’s wrong pls enlighten me :)

2yr ⋅

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1yr ⋅

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Which compound is this?

1yr ⋅

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Which one would be the correct highest conformer? Is CH3 supposed to be on the top for the first carbon because it’s the bulkiest?

1yr ⋅

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NMR: Does this look right so far? I’m struggling with what’s symmetrical

1yr ⋅

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Could this reaction path exist?

4yr ⋅

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(Sorry in advance for the wonky arrows) I did this for fun.... does the mechanism look accurate?

4yr ⋅

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Why start counting carbons from right to left?? If I had to draw displayed structures based on the names, I would have started from the left (basically mirror images of the solution given). Am I wrong or is it arbitrary?

2yr ⋅

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To get from left to right, they use CH3NH2. How is this possible? How can methylamine do nucleophilic substitution here?

4yr ⋅

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I don’t understand the calculations behind Partial Pressure in this case. How can you just subtract the partial pressures as if it is concentrations to find the partial pressures at equilibrium. 6p-1/7p isn’t equal to 5/7p?

3yr ⋅

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These molecules are ranked in order of acidity (1=most acidic) and I have written down the correct order according to the answer key, but no explanation was given as to why each molecule was ranked in this order. Could some please help me better understand?

5yr ⋅

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Someone please help with my stoichometry homework

1yr ⋅

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Help identifying amino acid residues in this figure

4yr ⋅

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How does oxidation shorten the upper chain? Isn't it just supposed to oxidise the terminal carbons?

5yr ⋅

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Hi chem Reddit.... Help. I want my 2.5 gallon aquarium to have 0.4ppm of copper sulfate in it. One ounce of copper sulfate in 20 gallons of water will yield a concentration of 0.625 ppm. How many mls of this do I need to add to my 2.5 gallon aquarium? My dimensional analysis is so rusty...

1yr ⋅

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Chem please help, gas laws 🙏🏻

1yr ⋅

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Does anyone know how the answer is derived for the sentence i circled in box? I mean how do they know 0.33 belongs to Ni when 0.33 is actually a ratio of Ni and Al. And how does it know Al is 3 in its integer form?

3yr ⋅

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Is this Grignard reaction mechanism to form diphenylmethanol correct? We haven’t covered Grignard reactions in theoretical classes yet...

5yr ⋅

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Any help with this nmr spectra? It should be 2,3-dibromo-3-phenylpropanoic acid , I’m trying to figure it out, the first broad peak with 4 H I don’t understand from where it could come? the reactant?

2yr ⋅

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Is the chiral carbon r or s configuration?

1yr ⋅

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Why is it this in Lewis structures? How do I choose when to make double bonds between molecules and when should I not to?

1yr ⋅

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which one would be more correct, 1 or 2?

1yr ⋅

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Can someone explain the Peaks of Cinnamic Acid in 1H NMR to me?

3yr ⋅

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So stuck in these spectra, idk how to figure out the structure. Appreciate some tips

5yr ⋅

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Apparently this happens. How does BuLi not rather deprotonate the lactone? Does the chromium complex really make fluorobenzene that much more acidic?

4yr ⋅

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so lost with my chemistry homework! anxiety through the roof.

1yr ⋅

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I just started doing symmetry and I’m really struggling, especially with visualising everything. I already handed in these questions after doing them by googling and brute force, but I don’t really understand it very well or how to get to some of the answers I found so I’d really appreciate any help

4yr ⋅

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Why is my answer wrong? Wouldn’t the Na replace the terminal H and then CH3OTs just replace the Na? Why does it just deliver the methyl?

5yr ⋅

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Problems with solute vs Solvent?

4yr ⋅

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how do u balance this i literally cannot

1yr ⋅

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I'm finding it difficult to remember synthesis like this. Is there any easy way to learn it?

2yr ⋅

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how to rank bronsted acids from strongest to weakest? i don't understand why i got this wrong. went from longest to shortest bonds first, and then most EN bond to least EN bond. something wrong with my logic? i always seem to get these types of questions wrong.

1yr ⋅

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Can anyone help me here? It’s extra credit and I’m not sure where to even start.

5yr ⋅

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Chemistry Assignment: How would I draw this diagram and how can I figure out the answer? My teacher has sent me back 2 times over the diagram and I’m unsure of the answer

5yr ⋅

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really slumped here, not sure how to do this first problem without a calculator.

5yr ⋅

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I have no idea how to start reading this mass spec reading. It is not ones I am normally used to. I am used to seeing chromatograms. How do I start to be able to analyze this differently?

4yr ⋅

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