A2 OCR Chemistry B F334 - June 2015

I never thought I'd say this but thank god for the individual investi-f**k-ation

I was confused by the last question because the second to last question asked for the linkage (NHCO) and then the last question is how would it effect the linkage found in i) so thought it would have no effect on the LINK?

Errrrr
I put excess NH3 for the first one...


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the concentration at 30 hours only, because that is what the concentration is at that time and thats what you need - not the difference

What did the IR question actually say? I just remember saying there was no O-H blah blah and there was a C=O blah blah... (Blah blah is wave number and that :P)

* Did we have to say what molecule it was or something? Mis-read the question O.o

did it ask to draw the structural formula of glucose??

Here's that Hitler reaction video:
https://www.youtube.com/watch?v=jeLz-8RVQuw

Well it asked you to draw the monomer of cellulose which is beta-glucose so basically

Here's that Hitler reaction video:
https://www.youtube.com/watch?v=jeLz-8RVQuw

creasing at this, nandos-tier banter

Thanks, my friend made it and I thought it was pretty funny.

I honestly feel so gutted by that exam...

I was studying mark schemes, past papers. It got to the stage where all the past papers i loaded on my tablet looked familiar, I was pulling out answer-after-answer on the past papers quickly, and i was beating the time limit by quite a margin whilst still getting decent grades... In fact, before the exam, I did a past paper and got myself an A on it...

And then i went into that exam... And wow... Honestly. I struggled more than i ever have. Usually in chemistry you have some questions which are very hard (for instance, there's a titration one which threw me because concentration wasn't given), and using applied knowledge, but in every paper, there's also nice questions which are generic, simple, pretty nice to go through...

In this paper, things got completely flipped on their head. There seemed to be much horrible questions that relied on deciphering OCR's version of English than knowing content (cmon OCR, I was expecting at least 1 question on chiral centers or E/Z isomerism).

This is the worst paper they've ever done on the salter B spec in my opinion. I know the grade boundaries have to be low this year (smartest person in my class struggled, and they're off to Oxford!). But am i the only one worried about how much they have to come down by in order for most students to pass?

for the drawing of the half-cell with the vanadium, what did people put as the electrodes? i put Platinum for VO2+ and VO+ and Vanadium for V3+ and V2+

I think it was platinum for both because no solid vanadium metal was in any of the half equations