Organic Chemistry bringing out the tears

[concise]

practice, practice, practice



anyone who may need/want it, knock yourselves out with a set of old exams, mostly semester 1

Old testing items...

 

[CASHAPP]

Real quick.....

the only part of the RNS thing I understand is that "S" is for when its counterclockwise and R is clockwise.

But can someone explain it to me without the use of an organic kit?

 

[CASHAPP]

^



please im getting stressed thinking about it

 

[CASHAPP]

Also when you get a small table giving a specific compounding on it asks when does each undergo "hydrogen bonding when in aqueous solution", how do you know the answer is yes or no?

does the hydrogen bonding only take place when H bonds with a certain element?

 

[wire28]

im glad im done with that shyt

 

[CASHAPP]

im glad im done with that shyt

 

[daboywonder2002]

bro i struggled with organic too and trust me when i say this. TAKE IT DURING THE SUMMER. its totally different than general chemistry. you cant take organic when you have other classes as well. take it in summer school when you can focus 100 percent on it.

 

[CASHAPP]

bro i struggled with organic too and trust me when i say this. TAKE IT DURING THE SUMMER. its totally different than general chemistry. you cant take organic when you have other classes as well. take it in summer school when you can focus 100 percent on it.

well too late for that

anyway do you remember anything from it? Like that question about the hydrogen bonding in aqueous solution?

It was a question on the last test but I am going over it because all his tests are cumulative.

But i have a feeling that type of question is under high school curriculum. The thing is that I just forgot the rules.

Does it take place in aqueous solution when bonded to a certain element? What are usually the exceptions?

but the RNS is the thing that is stressing me...........and the naming and numbering of groups(cyclo,1,3,etc)

 

[Monoblock]

I fukking hated Organic Chem. I only liked when we had to make wine in the lab. Biochemistry should be used for torture. That shyt almost made me murder someone.

 

[CASHAPP]

I fukking hated Organic Chem. I only liked when we had to make wine in the lab. Biochemistry should be used for torture. That shyt almost made me murder someone.

So u don't know the answer to the questions either?

 

[TheBigBopper]

never had to take this shyt. finance majors 'in

 

[CASHAPP]

never had to take this shyt. finance majors 'in

Stop showing off......

and where is my response about the PM

 

[concise]

Real quick.....

the only part of the RNS thing I understand is that "S" is for when its counterclockwise and R is clockwise.

But can someone explain it to me without the use of an organic kit?

r = clockwise or arrow circling to the right
s= counterclockwise or arrow circling to the left (s for sinister or left)


have your lowest ranked attached atom eclipsed by the stereocenter and go from highest ranked to lowest ranked


so say,

.......H
HO- C-NH2
......CH3


imagine H to be in the back, eclipsed by the carbon and go from the highest ranked element to the next on to the last


your circle here would go oxygen,nitrogen, carbon,

rotating to the right, R designation

 

[Tha Snowman]

Also when you get a small table giving a specific compounding on it asks when does each undergo "hydrogen bonding when in aqueous solution", how do you know the answer is yes or no?

does the hydrogen bonding only take place when H bonds with a certain element?

This question is primarily asking if you can identify molecules with a permanent dipole, as that's necessary for hydrogen bonding to occur. So yes, you're only going to see this when hydrogen is bonded to a highly elecronegative element in a configuration that results in a net dipole.

As for naming, just review the IUPAC rules. They pretty clearly spell out what comes before what. That's just a simple memorization task.

For stereochemistry, you need two things:
1) Be able to orient molecules in space to place the hydrogen (or lowest ranking element/group) extending back into the page
2) Remember which elements take precedence over which so you know which way to count. The general rule is the higher the atomic number, the higher the precedence.

 

[ThugLife]

and the sad thing is, i had to beg for points

You aint foolin nobody we know you did alot more