OCR Salters B F334 Chemistry of Materials (24/06/2011)

Has anyone read all the storylines for this exam??

D'awww you're so nice :')
just dreading that last exam. my other four retakes didn't go so well so I'm trying to nail this exam but it's just SO boring. i mean, i dropped biology AS for a reason are you doing it too?

I know what you mean, but dont worry, you'll be ok, just pray that the exam is good And yeah, im re-taking got a boring 'D' for this unit in January, and i think im going to go lower lol i cant stop yawning when im revising for this unit.

How was F335 last week?

does ne1 have the f334 jan 11 paper?????
if so plz postt!!

meh that was easy MS_F334_Jan11.pdf

Nice one, I got my paper back and went through it myself, but now I can use the mark scheme too, thanks!

Do we need to know how to name complex ions? It's in the textbook but not mentioned in the spec. Also do we need to learn the structure of EDTA?

Is it just me or is there a mistake in the markscheme in the F334 Mark scheme for jan 2011.

For question 2, the oxidation state for 03-was meant to be -5 which the bromine being +5, therefore the compound being zero. But the markscheme says +5 and -2 :/ What the hell?

Is this another mistake, that OCR have made?

storylines has so much unneccesary crap, except for thread of life. if you've got the Salters A2 revision guide, the storylines you'll need to refer to will be shaded in the spider diagram at the beginning of each topic.

Nope no naming of complex ions not in the spec, but the books all have half a page on nameing complex ions, i suppose its good for background knowledge and how complexes work.

And yeah, you need to have a outline of EDTA 4 - as a polydentate and ethanedioate ions as a bidentate. So basically, be able to recognise their structures.

wut.
lol i have no idea about what you just said, what is polydentate?? ARGHHH ima gonna fail

Is it just me or is there a mistake in the markscheme in the F334 Mark scheme for jan 2011.

For question 2, the oxidation state for 03-was meant to be -5 which the bromine being +5, therefore the compound being zero. But the markscheme says +5 and -2 :/ What the hell?

Is this another mistake, that OCR have made?

Yeah thats what got me thinking aswell. was doing the paper before and when I came to marking it that seemed abit odd. I think it is a mistake.

Polydentate is when there are several bonds between the central transition metal ion and the surrounding ligands in a complex.

NMR won't be in their, neither will equilibrium constants (i.e Kc, they're only f335) However I feel a translation/transcription question will probably come up.