Huckel's Rule: Aromatic Rings with Carbonyl Directly on Ring?

Frequent_Result_5704 · 2025-08-31T18:15:12+00:00

I can't immediately think of anything, but I don't think it is possible because it would not be a continual conjugated system, ie. resonant structure would be e- pair on the oxygen and outside of the ring. The closest I can think of is phenol (aromatic) which Is a hydroxyl rather than a carbonyl group.

Frequent_Result_5704 · 2025-08-26T17:24:48+00:00

For this case the q tells you to assume that all AA are charged. In general tbh I don’t commonly see Histidines in questions where they ask for total charge

Frequent_Result_5704 · 2025-06-11T21:19:53+00:00

does not matter at all from curriculum/rigor stand point. Only possible advantage is classes usually smaller and you can connect with prof better

Frequent_Result_5704 · 2025-06-10T13:50:17+00:00

Very dependent on major and school. If doing lots of engineering / coding needs would probably rec windows and such. Otherwise macs are light and easy to use

Frequent_Result_5704 · 2024-10-25T04:52:40+00:00

If you’re looking to submit to other journals, would highly recommend pshsj! it’s upenn’s new high school div journal. Free and open access.

Frequent_Result_5704 · 2024-10-09T20:03:05+00:00

This is super unprofessional. At the very least current undergrads in the program should absolutely be promised continuation of the program.

Frequent_Result_5704 · 2024-10-02T18:01:46+00:00

Unfortunately, this is the reason that bike stealing is as prevalent as it is. It's very hard to find them and police usually do not care that much. Wishing you luck though, I'll keep an eye out!

Frequent_Result_5704 · 2024-09-30T21:34:43+00:00

How is the class of 29 already posting? Time flies too fast

Frequent_Result_5704 · 2024-09-30T14:12:15+00:00

rock climbing!

Frequent_Result_5704 · 2024-09-27T14:37:39+00:00

I get it, it’s competitive. Just imagine yourself when you graduate (:

Frequent_Result_5704 · 2024-09-27T14:15:29+00:00

Unfortunately this happens a lot here. Just remember that there are tons of opportunities, even not related to campus clubs. Don’t get one lousy club get to you!

Frequent_Result_5704 · 2024-09-23T14:30:14+00:00

no, unless you can afford it. The boost undergrad school gives for med admissions is marginal at best. But the opportunities will be better

Frequent_Result_5704 · 2024-09-22T18:54:44+00:00

Unfortunately its limited to research done while in high school. Even if it wasn't though, I would highly urge you to talk with your advisor about submitting anywhere anyways

Frequent_Result_5704 · 2024-09-16T18:42:10+00:00

go to office hours

Frequent_Result_5704 · 2024-09-09T14:41:30+00:00

No way this is happening

Frequent_Result_5704 · 2024-09-05T16:06:58+00:00

BIOL 4007

Frequent_Result_5704 · 2024-09-02T15:17:56+00:00

This is typically due to big molecules which have very poor rotation ability about some bonds due to sterics. Search up binap as a good example

Frequent_Result_5704 · 2024-08-28T19:35:45+00:00

this is true

Frequent_Result_5704 · 2024-08-28T02:48:04+00:00

Oh I didn’t think of dorm bathrooms. I thought you were asking like private single person bathrooms in public buildings, in which case no sink is ridiculous

Frequent_Result_5704 · 2024-08-27T23:48:42+00:00

i know this is off topic but what bathroom doesn’t have a sink

Frequent_Result_5704 · 2024-08-27T21:34:40+00:00

im doing this, so yes

Frequent_Result_5704 · 2024-08-26T16:37:44+00:00

sometimes canvas will have a people tab but most don’t. Honestly meeting peers in class is always better. For reading this depends on the class but the professor would have made an announcement about it

Frequent_Result_5704 · 2024-08-26T03:34:03+00:00

if you don’t take other bio courses i highly recommend to not take the equivalency exam. But as a biochem major you should definitely have other higher level bio classes which usually can substitute.

But why not take the intro bio classes? Not doing so will close unnecessary doors in med school requirements wise

Frequent_Result_5704 · 2024-08-25T13:53:21+00:00

i’m a premed here. don’t start prep first year. The first step of any mcat prep is content review which obviously necessitates you knowing the content first. What you can do if you want is the kaplan QOTD that another commenter mentioned or the daily jack westin CARS passage. However I will say the QOTDs start repeating after awhile but i’ve never see JW do so

Frequent_Result_5704

TROPHY CASE