OCR A Chemistry F322 Chains, Energy and Resources Thu 19 Jan 2012

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It was asking for the amount of structural isomers when chlorine react with the molecule they showed, not how many isomers of the formed molecule are there... if you get me

Original post by holahola

How did everyone do the monomer unit?

I drew it the same way the monomer was but removed the double bond and attached another monomer. if that makes sense.

I hated the paper!!

Original post by holahola

Was one of the answers for something butanoic acid ?

Yeah carboxylic acid K was Butanoic acid

Original post by superdentist

that link is is calculating all isomers of all possible branches.

Isomer I had only 1 branching methyl group, the reaction would not change this so...
the website isnt correct.

what did you put?

Original post by superdentist

ANYONE get hold of the aper scan it upload it pleaseeee!!!!! XD

I agree with this person.

P.s. I wrote 8 for the structural isomers, however, I am inclined to believe this is wrong.

Probably something like 12, 16 or 20. :smile:

:smile:

FML

its 8 structural isomers

For the question about why process 1 would it be right to say high percentage yield... High conversion rate

What about the mass spec question? I got molecular formula of CH2O2

For the polymer chain repeat units is it okay if you put brackets around the two units? with two side chains coming out of the brackets to show (N)

I put 108 instead of 109.5 for the bond angle question :frown:

:frown:

Reckon they'll accept it?

Original post by Bakr212

What about the mass spec question? I got molecular formula of CH2O2

I think i got CH3CH2OH

Original post by nffc-b

Me

:smile:

me too

:smile:

Original post by Bakr212

What about the mass spec question? I got molecular formula of CH2O2

how would the bonding work in that? :O

think is was CH2OH

Original post by Eternal Rest

I put 108 instead of 109.5 for the bond angle question :frown:

:frown:

Reckon they'll accept it?

really doubt it, you were ment to remember 109.5 :biggrin:

:biggrin:

Original post by Bakr212

What about the mass spec question? I got molecular formula of CH2O2

Yep ... Correct :smile:

:smile:

i also put c2h6o

Original post by holahola

For the question about why process 1 would it be right to say high percentage yield... High conversion rate

dont think so cause it asked why the first 1 would be better than the second 1 and u didnt know the % yield of the second 1 :/

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