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OCR Salters Chemistry 2849 - Chemistry Of Materials

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i got something like 0.06 too. i just extrapolated the graph which was fine since it wasnt extrapolating too far.

i also got dehydration too , but only at the last minute. i mean, it's not even on the a2 syllabus is it? :p:

Reply 41

W0nker

Everyone should just ditch this thread and go into the other one.

Reply 42

Negin

dehydration and elimination are the same thing in the case were water is being lost right?

Reply 43

username68316

Negin

hmm, i said elimination

same thing

Reply 44

Scott Storch

How many chiral carbons?

Reply 45

W0nker

Horrorshow

i just said because it was addition polymerisation, not condensation.

btw on past papers it's only been a first order half life graph if the gap has been identical. this wasnt :p:

Lol it is just one mark.

Reply 46

anotherarunan

how many chiral carbons were there? i put 2...complete guess!

I worked out 2!

i got 3

i got 3

edit: in fact, im sure it was 3

****! lol

yeh exactly one mark :smile:

Reply 52

W0nker

Well on the whole I reackon I lost about 6 marks for all silly mistakes I made but I recokon I did pretty well.

Reply 53

Negin

wasnt the enzyme question just nice and also the experiments, the colorimetry and the recrystalisation, hope i got ful marks on those

oops

Yeah definatly.

I revised recystalisation yesterday just incase because I saw it on a past paper and chromatography because I saw taht before. And the 5 mark colorimetery question - what a give away that was just my c/work!

Reply 56

anotherarunan

Negin

wasnt the enzyme question just nice and also the experiments, the colorimetry and the recrystalisation, hope i got ful marks on those

what was the propery of the solvent for recrystalisation?

Reply 57

Negin

i better go revise for biology unit 4 and 5, good luck to anyone taking the exam tomorrow!
by the way why is it that we never stop making those stupid silly mistakes!!!!