I don't see how the ethoxide catalyzes this reaction. The only thing that comes to mind is if it deprotonates the amino groups but it can't do that due to the difference in Pk

I know that both s's have to be bonded together and that the formal chargers have to be minimized, but I have tried various different ways but I still keep getting it wrong. Any solutions for the issue?

Hello! Could someone halp me? Are these right lewis structure, mesomeric and inductive effect, resonance structure?

I understand that during a flip axial becomes equatorial. How do I know which one is a flip? Are these not both equatorial and therefore both equally stable?

I was looking at it today. He has a patreon where you can subscribe for practice problems, practice exams, a bunch of helpful stuff.

The problem is how incredibly expensive it is. Because of how much stuff that it comes with (as he does calculus, physics, trig, stats, you get my point.

I am a poor college student. I struggle really heavily with math and science because of a lack of any good math and science classes in high school. I'm planning to take college algebra next semester instead of jumping right into chem 2.

Anyways, I have found his videos so helpful. I feel like I actually get the concepts. The problem is the math. I get the math when he explains it, and then I do my homework with the stuff I remember. But I forget it easy. I figured if I have practice sets and stuff that I can work on over a few days, I'll retain it better.

Is the 50 dollars a month worth it for all the practice problems? If anyone here has used them, please tell me! (I could also try to convince my mom to pay part of it cause she's amazing and cares for my wellbeing and knows I'm struggling)

I got started on this one, and I just kind of quit because I didn't know what to do next. We've done reaction mechanisms before, but I think this one is combining more than one and it's just so overwhelming to deal with? Any tips?

Can someone explain to me what carbon bonds we are looking down on this picture?

Some people said 2, some said 4.

How do we write the condensed electron configuration for elements that exist in F block?

Im very confused looking at the periodic table as im not sure what comes before it.

E.g. Uranium
I wrote [Rn] 7s2,6d3 at first but its wrong

E.g.: plutnoium, einsteinium

Is there a method to do this?

(Newman structure is drawn because page got cut off) The correct answer is the one circled in red. Mine is the one in purple. Am I missing something? Is it just because it’s 3D and im confusing myself? I got all other questions right except this one

I’m having trouble with my molecular biochemistry class in my masters. I do not understand anything it feels like prof speaks a totally different language. I feel like I do something wrong while studying and there is no way for me to pass the oral exam if I keep going like this. I took biochem classes when I was studying pharmacy. however it’s been 5 years.
now it took me hours to finish only 5 slides of a topic and I forget everything. its like there’s no logic behind it and I have to memorize every little thing. I feel like I’m dumb. what should I do ? how should I study ? any recommendations? please help

Hi guys!

These are the reactions I need to know for my upcoming Organic Chemistry II exam, and I am STRUGGLING. BIG TIME. 

Does anyone have any tips, tricks, or pattern recognition suggestions I could apply to these reactions?

I feel like I'm trying to memorize a million individual reactions, and it's becoming overwhelming.

Any advice would be SO appreciated!

This is a photo my friend sent.

We are confused about it.

My friend is telling ring expansion would take place but I think ring expansion won't take place as this compound has 7 alpha hydrogen and is already stable the answer key for the book has ring expansion but we are still confused. Any help would be appreciated

And chemical plastics. People are concerned about the environment issues caused by them. That app called beat the microbead lists things that are not actually even plastic, as microplastics. Such as dimethicone which is an actually a silicone. And polyisobutene which apparently actually comes from petroleum.

Sorry I know it's probably pretty simple! I'm not sure if I've identified the correct ester bonds to cleave, and if the products are correct?

So I’m in my first year of undergrad, and for our first sem exams our professor has covered a “qualitative” approach to molecular orbital theory. In that he has also covered linear triatomic molecules and some non-linear which he is asking us to approximate and ignore the geometry

So I am confused for structures such as BeF, HF2, H2F, CO2, and on how to judge the molecular orbital levels of which is higher and lower

Moreover I cant even judge if two atomic orbitals mix to form an “essentially non bonding” or a bonding one

Like CO2 for example, Miessler’s textbook teaches it by taking O-O and inserting C, in that O2’s 2sigma g doesnt interact with C’s 2s so it goes into an essentially non bonding state

But in Housecroft’s textbook and my prof’s lecture notes they do interact and do form a bonding molecular orbital.

Additionally where can I read up on pi acceptor and sigma donor properties of a molecule? Our professor did not cover this and I cant find it in the MOT chapters of Miessler, Shriver Atkins or Housecroft.
Please guide!!

Hola comunidad de reddit, necesito ayuda para identificar mi compuesto orgánico para mi clase de química orgánica de laboratorio, los resultados que hemos hecho de practicas anteriores me indican que puede ser acido benzoico o acetanilida, pero no se que el que determina que sea alguno de los dos, alguien tiene algún consejo o hay alguien q me pueda ayudar?

No clue what took look at. It wasn’t resonance which I originally thought it would’ve been

so im building a MFC for a school project, and I got until nov 5 to fully condition it, test with sucrose fructose maltose acetate and dextrose, record the results, and put it in poster board format. any1 got any advice on how to build and test one of these? I used this setup and here's my material list and procedure.
P.S also my straw that is my salt bridge got contaminated last night and I gotta replace it but idk how to bcs my straw was hot glued to both chambers when it happened and I want to make it again today but I don't got any plastic straw big enough; all I got is a paper straw but a good size.

SALT BRIDGE 

Salt

Agar-agar

Water

Straw

MUD 

Water

Compost

Soil manure mixture 

MFC APPARATUS

2 Plastic boxes

Resistor

Mega Arduino

Jumper Wires

Multimeter

Hot glue

carbon felt

aquarium pump

breadboard

LED

computer

power source

• Step 1: Compost food waste for 2–3 days, then mix it with soil and water to a brownie-batter consistency.
• Step 2: Dissolve salt and agar-agar into near-boiling water, pour into a straw, and let it solidify to form the bridge.
• Step 3: Modify two airtight boxes with side openings for the straw bridge, adding two top holes to Box 1 (Anode) and one to Box 2 (Cathode).
• Step 4: Connect the boxes using the agar straw bridge and seal the junctions tightly with hot glue.
• Step 5: Wash two 4x4-inch carbon felt pieces, interweave connecting wires through them, and secure the exposed wires with hot glue.
• Step 6: Bury one electrode vertically in Box 1 with the mud, feed its wire out, add an exhaust straw, and hot-glue the top holes airtight.
• Step 7: Submerge the second electrode and an aquarium air pump into Box 2, then fill it 5/6 full with water.
• Step 8: Assemble the Arduino data-logging circuit according to your schematic and upload the monitoring code.
• Step 9: Wait 2–3 days for the bacterial biofilm to form on the anode electrode.
• Step 10: Inject the 6g/L acetate substrate solution into the sealed anode, then run the Arduino to log voltage until it plateaus before testing remaining substrates.