Xetter
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Hey Guys! Hope everyone's revision is going well!

Just made this thread for a few of us to fire F322 questions at each other to make sure we all get them and end up with a good mark on the summer.

I'll start off! 😊

Are the only two types of 'Stereoisomerism E/Z and Cis/Trans?

Cheers, Jack 😊

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Serine Soul
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(Original post by Xetter)
Hey Guys! Hope everyone's revision is going well!

Just made this thread for a few of us to fire F322 questions at each other to make sure we all get them and end up with a good mark on the summer.

I'll start off! ������

Are the only two types of 'Stereoisomerism E/Z and Cis/Trans?

Cheers, Jack ������

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There's also another type of stereoisomer called enantiomers, but we learn that in A2 (its really interesting)

So glad you made this thread
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Xetter
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(Original post by enaayrah)
There's also another type of stereoisomer called enantiomers, but we learn that in A2 (its really interesting)

So glad you made this thread
Oh really! That's good! But that's it for AS yeah?

How's your revision going?

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Serine Soul
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(Original post by Xetter)
Oh really! That's good! But that's it for AS yeah?

How's your revision going?

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Yup just the E/Z and cis/trans isomerisim for AS. Sometimes get confused between the two but just a review and I'll be okay

Do you prefer physical or organic chemistry?
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username1533709
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(Original post by Xetter)
Hey Guys! Hope everyone's revision is going well!

Just made this thread for a few of us to fire F322 questions at each other to make sure we all get them and end up with a good mark on the summer.

I'll start off! ������

Are the only two types of 'Stereoisomerism E/Z and Cis/Trans?

Cheers, Jack ������

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No,I swear there is optical stereoisomers ?
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Xetter
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(Original post by enaayrah)
Yup just the E/Z and cis/trans isomerisim for AS. Sometimes get confused between the two but just a review and I'll be okay

Do you prefer physical or organic chemistry?
Yeah, Cis is just E isomerism with both the priority groups the same and Trans is just Z with both priority groups the same.

I prefer the physical stuff if I'm honest. Naming hydrocarbons is fine but all the reactions and conditions you need to remember is just a pain in the backside. What about yourself?

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RevisionNad
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I think it will be handy to learn about optical isomers. It is a really quick topic to learn, and it may be worth going over just in case. They are non superimposable mirror images, and have chiral carbon centres, they are asymmetrical molecules and are attached to 4 different groups. So if you are asked to draw one, then it would most likely be the mirror image of the one they gave you. At A2, you need to be able to construct them both. Good luck!
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Serine Soul
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(Original post by Kadak)
No,I swear there is optical stereoisomers ?
Optical isomers are enantiomers
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RevisionNad
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Maybe you can help me? How do you work out enthalpy of reaction?
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Serine Soul
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(Original post by Xetter)
Yeah, Cis is just E isomerism with both the priority groups the same and Trans is just Z with both priority groups the same.

I prefer the physical stuff if I'm honest. Naming hydrocarbons is fine but all the reactions and conditions you need to remember is just a pain in the backside. What about yourself?

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Physical too Learning all the conditions is a pain. Have you started the Green Chemistry topic yet?
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samb1234
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(Original post by RevisionNad)
Maybe you can help me? How do you work out enthalpy of reaction?
Directly or indirectly?

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username1533709
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(Original post by enaayrah)
Optical isomers are enantiomers
.
Cool.Cant wait but we have to ace AS first.
I would like people to ask plenty of Spectroscopy questions since thats my weakest link .
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Xetter
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I know how to calculate the enthalpy change of Formation or Combustion if that helps? Didn't think there was an equation to work out reaction...

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Serine Soul
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(Original post by Kadak)
.
Cool.Cant wait but we have to ace AS first.
I would like people to ask plenty of Spectroscopy questions since thats my weakest link .
We haven't started it yet
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samb1234
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(Original post by Xetter)
I know how to calculate the enthalpy change of Formation or Combustion if that helps? Didn't think there was an equation to work out reaction...

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If you can't measure it directly you have to create a Hess cycle using what ever enthalpy changes they give you. The question will always be done in such a way as to allow you to have a cycle which you can then use to calculate enthalpy change of reaction

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Xetter
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(Original post by enaayrah)
Physical too Learning all the conditions is a pain. Have you started the Green Chemistry topic yet?
Yeah I have, its not too bad. Its more just remembering certain things and doing past papers on them because the answers are very repetitive

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Xetter
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IR spec questions are fine with the troughs on the graphs referring to certain bonds.. I'm just not as keen on remembering all the mechanisms and the oxidation of Alcohols! (Its a big topic and I've been scared of revising it)

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samb1234
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(Original post by Kadak)
.
Cool.Cant wait but we have to ace AS first.
I would like people to ask plenty of Spectroscopy questions since thats my weakest link .
Explain why you cannot directly compare the relative abundances of the peaks in the fragmented part of the spectrum with the peaks in the molecular ion section for something like cl2

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Serine Soul
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(Original post by Xetter)
Yeah I have, its not too bad. Its more just remembering certain things and doing past papers on them because the answers are very repetitive

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Ah, that's reassuring. Are you doing the ISA or the EMPA?
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RevisionNad
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(Original post by samb1234)
Directly or indirectly?

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Please mention both. I seem to have forgotten this topic! I looked online but I thought I'd resort to here. Thanks!
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