Destroyer OCHEM QUESTION

[Dream team]

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question # 144 NMR how do you figure doublet...I am having problems with NMR any help would be appreciate it....

second question: I think the answer to 152 is wrong and it should be A
these are all from OCHEM section


thanks

 

[901preDent]

i dont HAVE MY DESTROYer in front of me but i can assure you that there are no wrong answers in the orgo section!. they dont call him orgo man for nothing! good luck

 

[901preDent]

ok i just checked those two 152& 144 and they are correct. i would suggest you look at your orgo book and read some before you call dr.romano out and say hes wrong. you are wrong! good luck!

 

[Dream team]

I need to know how to solve 144, i didn't say is wrong...We are here to help each other out...so if you don't want to expalin/ you don't know, please don't respond...Thanks you!

I was asking if the answer to #152 of OCHEM is wrong and anyone got a different answer...
I think A should be the answer because it has a larger surface area...

So instead of being in love with your orgoman, expalin why you think he is right...
DON'T HATE THE PLAYER, HATE THE GAME😀

 

[901preDent]

sorry sweetie didnt mean to hurt your feelings! btw we are all not in to help each other. Everyone is in it to help themselves. i tried to give you some advice and look it up. i really didnt feel like explaining the problem to you. didnt mean to offend you.

 

[Dream team]

sorry sweetie didnt mean to hurt your feelings! btw we are all not in to help each other. Everyone is in it to help themselves. i tried to give you some advice and look it up. i really didnt feel like explaining the problem to you. didnt mean to offend you.

so you mean, you already made love to your orgoman! you love him don't you? So basically, you don't know the answer.

 

[issa]

i dont HAVE MY DESTROYer in front of me but i can assure you that there are no wrong answers in the orgo section!. they dont call him orgo man for nothing! good luck

imagine what if dr. romano answered the question below this way..

acid + alcohol ------------> base

 

[poc91nc]

nfm

 

[dentgirl08]

Hey - I think I have a diff version of destroyer from you - but the main thing about NMR is that you're counting the number of H (plus 1) on adjacent carbons...I know...I'm confusing...
For instance CH3-CH2 -0-CH2-CH3 --> then the methyl carbon would count 3 peaks (because it's adjacent carbon has 2 hydrogens (2+1)) while the CH2 carbon would have a quadruplet peak because of the 3 hydrogens from the adjacent methyl carbon (3+1). Imagine a hydrogen being hit by each of the hydrogens by the hydrogens from adjacent carbons plus an extra hit from itself.
Electron withdrawing groups like carbonyls and carboxylic acids will deshield the hydrogens on a carbon so if you have a CH3-CH2-CHO then the peaks representing CH2 hydrogens will be further down (to your left) of the NMR spectrum diagram.

Usually - there are patterns to NMRs. Like - 2:3 peak pattern is an ethyl group. Propyl group would have 3:6:3 ratio (CH3-CH2-CH2). Isopropyl group (CH3)2CH would have 7:2 ratio...

question # 144 NMR how do you figure doublet...I am having problems with NMR any help would be appreciate it....

second question: I think the answer to 152 is wrong and it should be A
these are all from OCHEM section


thanks

 

[Dream team]

Hey - I think I have a diff version of destroyer from you - but the main thing about NMR is that you're counting the number of H (plus 1) on adjacent carbons...I know...I'm confusing...
For instance CH3-CH2 -0-CH2-CH3 --> then the methyl carbon would count 3 peaks (because it's adjacent carbon has 2 hydrogens (2+1)) while the CH2 carbon would have a quadruplet peak because of the 3 hydrogens from the adjacent methyl carbon (3+1). Imagine a hydrogen being hit by each of the hydrogens by the hydrogens from adjacent carbons plus an extra hit from itself.
Electron withdrawing groups like carbonyls and carboxylic acids will deshield the hydrogens on a carbon so if you have a CH3-CH2-CHO then the peaks representing CH2 hydrogens will be further down (to your left) of the NMR spectrum diagram.

Usually - there are patterns to NMRs. Like - 2:3 peak pattern is an ethyl group. Propyl group would have 3:6:3 ratio (CH3-CH2-CH2). Isopropyl group (CH3)2CH would have 7:2 ratio...

I like your wording...you rock! I hope you get in to your dream school!

 

[SirShagaLot]

Hey - I think I have a diff version of destroyer from you - but the main thing about NMR is that you're counting the number of H (plus 1) on adjacent carbons...I know...I'm confusing...
For instance CH3-CH2 -0-CH2-CH3 --> then the methyl carbon would count 3 peaks (because it's adjacent carbon has 2 hydrogens (2+1)) while the CH2 carbon would have a quadruplet peak because of the 3 hydrogens from the adjacent methyl carbon (3+1). Imagine a hydrogen being hit by each of the hydrogens by the hydrogens from adjacent carbons plus an extra hit from itself.
Electron withdrawing groups like carbonyls and carboxylic acids will deshield the hydrogens on a carbon so if you have a CH3-CH2-CHO then the peaks representing CH2 hydrogens will be further down (to your left) of the NMR spectrum diagram.

Usually - there are patterns to NMRs. Like - 2:3 peak pattern is an ethyl group. Propyl group would have 3:6:3 ratio (CH3-CH2-CH2). Isopropyl group (CH3)2CH would have 7:2 ratio...

in a nutshell, that is basically all you need to know