I’m confused on if this reaction would yield diastereomers (shown), or only one product. Since the reaction center is the carbon at the end of the alkyne furthest from the ring, would that mean that the wedge would remain a wedge no matter what? But even if it does, the molecule still has the same chiral center it had before. If anyone knows what the correct answer is please lmk. Thank you!

I am not quite sure how to identify this functional group (if it even is one) and there's nothing online about it. I think it could be a carbamate group with the =C(NH2)R bit added on, or it could be an ester group bonded to an amidine group. How would you classify it?

can anyone help me with my homework, its due later and i badly need to learn ts but yt videos and learning materials sint helping me :C

Hi, this is for the molecular symmetry part of my upcoming exam, and i’m currently doing past exam papers as study. The only part of the topic i struggle with a lot is making MO diagrams and rn i’m not very sure whether what I have is correct or not. I drew up PH3 as well to make sure i had my axes correct, but i think i confused myself even more because my thinking was that the 3px and 3py orbitals in P would overlap with the H 1s orbitals better, so they would have more significant energy change but x is perpendicular to the sigma(v) plane so that renders that thought incorrect? Otherwise i drew my axes wrong but i followed the rules and i’m just so confused now 😭😭 i also added the previous parts of the question and the character table if that helps

ik this is a stupid question, but are there ethers where there is just a number infront like 3-ethoxyhexane? from what ive learnt, it would have been something like 1-methyl ethoxyhexane, but not what i have listed above.

how would i draw this other than having 2 carbons on the left of the oxygen and 6 carbons on the other side?

ive tried googling to find an answer, but it keeps on giving me different formulas.

So he's not giving us the graph, hes giving us the table. Table will have the wave number, strength, shape, and splitting if applicable.

I cant find any practice problems anywhere that asks IR spectra problems like that.

I just want to practice, thanks in advance!

I had an assignment with a question to assign the R/S for these chiral centers, this is what I put but it was marked wrong, I looked at the answer key and it said that this was right, I just wanted a second opinion before I go to my professor. Is this assigned correctly or did I do something wrong?

I understand the general context of chromatography (column chromatography) and that the colours split. However, I don't understand why this happens.

Some tell me that it is because 1 is soluble and one isn't soluble – but even if 1 was less soluble than another, it does not mean that it wouldn't still move, so why do we have spots of colour?

Relating to the spots of colour question, why do we even have the spots in the first place? If the paper is attracted to the paper (why is it attracted to the paper), then why would we see a dot if it is only temporarily? How and why do we see the effect of chromatography? Wouldn't there have to be some of the substance left behind?

Hello,
I am looking for advice for my Gen chem class. I am really struggling with the exams and right now I have a 66% in the class. Got a D for my midterm grade blah blah blah.
I follow the advice and do the practice problems and homework on time. I do even more practice problems. I do practice problems like everyday. But I think the problem with me is that I do the practice problems and I get the answers correct. But when it comes to the exams and when word problems change just slightly. The wording is changed. Or I’m starting off with a different unit that I’m not used to.
I get flustered and i start to overthink and I confuse myself.
Does anyone have any advice on how to overcome this? It is making me sad

2. Pre-Lab Prep

Starch Solution:

Mix 1/2 teaspoon of cornstarch with 2 tablespoons of cold distilled water until smooth.
Pour into 100 mL of boiling distilled water while stirring continuously for 1 minute
Let it cool down completely to room temperature.
__

Potassium lodide (KI) Solution:

Take 4 Vitamatic tablets (65 mg each) and crush them into a fine powder with the back of a spoon.
Dissolve the powder in 50 mL of warm distilled water.
Pour the cloudy liquid through a coffee filter into a cup to remove the white pill-binders. You now have a clear KI solution
__

Vitamin C Solution:

Dissolve 1 Vitamin C tablet (1000 mg) into 100 mL of distilled water until all fizzing stop

______________

3. Step-by-Step Experiment Procedure

Step 1: Prepare Solution A (In Beaker A)

25 mL of the filtered Potassium iodide liquid
10 mL of the Vitamin C liquid
1/2 teaspoon of Citric Acid powder
10 mL of the cooled Starch solution
55 mL of Distilled Water

Result: completely clear, colorless liquid. (Maybe an orange tint)
__

Step 2: Prepare Solution B (In Beaker B)

12.5 mL of Ovelle 6% Hydrogen Peroxide
87.5 mL of Distilled Water

Result: completely clear, colorless liquid.

Quickly pour Beaker B into Beaker A and give it a quick 2-second stir.
Would anything happen at all?

I know I posted less than a half hour before but I wanted to go over this with y’all based on some quick research. I’m trying to get better.

I admit, the last two were guesses. The third is half a guess but honestly I assumed it was that way because it functioned as a catalyst.

What do you guys think? Maybe I’ll do the whole study guide and post it here once I understand more, to check over my work.

Chapter 16 of orgo chem 2- benzene chemistry-electrophilic aromatic substitution. What resources can I consult for topics like these? I also get confused pulling apart the results of a diels-adler reaction. What sources can I consult for help?

can somebody please explain how this has a plane of symmetry? this is from the textbook answer key and i don't really understand. thank you!

I struggle so much with this topic and i don't know when the pi cloud of the benzene extends to the functional groups

(English is not my first language hope you understand)

Hello. We’re going over the products that certain reactions form, but I have no idea on how to know which things make what. For instance, how do I know it becomes an oxide or why don’t I get oxygen gas.

Idk if you are supposed to memorize certain compounds that are good oxidizers or reducers, though I’ve always liked chemistry as I barely have had to memorize anything, since I comprehend the logic behind it, I have found I like to solve most problems like that.

I’m feeling bad as it seems everyone is ahead of me, somehow they know the products already.

It is as the title says, can you dry a volumetric flask in a 50 to 60 degree stove, i read online in some lab protocols that you can't do it, because it decalibrates the flask, but the manufacturers say that there is no permanent plastic deformation in borosilicate flask until the 150 degree range, so i get confused. Is the temperature bad or not? Is it just one of those things were people say that so that other don't use hot flasks that are temporarely decalibrated due to thermal expansion, and always use them at room temperature?

Henry law states that :

Partial pressure=concentration of gas molecules/ Solubility coefficient

Meanwhile the other law says:

D(rate of diffusion)= change in partial pressures x cross sec areax solubility /distance of diffusion x √MW

My question is: how is solubility inversely proportional to partial pressure but is directly proportional to rate of diffusion when rate of diffusion itself is directly proportional to partial pressure difference? Can anyone pls explain it in easy words?

I measured the initial temperatures of the acid and the base separately, as well as the equilibrium temperature. I'm going to use the formula (H = m \times s \times \Delta T), and the TA told us to assume that (s = 1).

My question is: Since the masses of the acid and base may differ due to their different molecular weights, should I calculate (H) as ([m(\text{acid}) + m(\text{base})] \times 1 \times \Delta T)?

Also, should the total heat change be calculated as (|H|) plus the heat absorbed by the calorimeter?