OCR Salters F334 Chemistry of Materials (26/01/2011)

what a convoluted paper.

PLEASE TELL ME THE FUNCTIONAL GROUPS WERE ALKENE AND AMIDE!!!!

Some of the questions were soooo weird, but some were so easy. So confused on how that went!

Reply 182

Are we allowed to discuss?

It was solid.

Original post by Darthdevidem

what a convoluted paper.

PLEASE TELL ME THE FUNCTIONAL GROUPS WERE ALKENE AND AMIDE!!!!

Some of the questions were soooo weird, but some were so easy. So confused on how that went!

Yup indeedy! I but oate in there too, because I'm an idiot.

What did everyone get the the last 4 mark question on the calculation? I got 0.792g.

And I got mol-3dm9s-1, and 12 for that rate reaction question.

But that colorimetry question was a gift!

Reply 185

AllUnits

Original post by ABCDemily

I got mol^-3 dm^6 s^-1 and 12 as k.

I got 0.792 g though.

Amide and alkene were the two functional groups.

Reply 186

Original post by ABCDemily

Yeah got same as you for both!!

What did you guys get for the bit where it said, "how are cross links formed with side chain alkenes and name the reaction"

I was like WTF!!!! I said Addition!

Also on the zwitterion did you have two NH3+ on it or did you just make one of the NH2 a NH3+?!?!?

Reply 187

So very lame that whole paper.. I got alkene, ketone :P
Everyone seemed to say 0.792 and 12 were the answers but i got 1.something and 10000 rofl!
Very very annoying paper.

Reply 188

ABCDemily

Original post by AllUnits

I got mol^-3 dm^6 s^-1 and 12 as k.

I got 0.792 g though.

Amide and alkene were the two functional groups.

Hmmm, half the people in my exam got mine, the other half got yours. All shall be revealed soon enough I think. It could have been worse, I'll give it that.

Reply 189

I ****ed up the calculations as per usual but no surprise there :smile:

Reply 190

same here, mine were totally spazzed. Hopefully get marks for method though :P It's normally when i do the final calculation at the end I always put it into my calculater wrong ¬_¬...

Cross linking was the killing blow for me :s-smilie:

!..

Reply 191

Original post by SamEmery

!..

saaame the only reason i put addition for the first one was because the next question said that it had a higher atom economy, and i think addition has a 100% atom economy so...

Reply 192

gozatron

Original post by AllUnits

I got mol^-3 dm^6 s^-1 and 12 as k.

I got 0.792 g though.

Amide and alkene were the two functional groups.

Everything the exact same as you.

Reply 193

Original post by SamEmery

!..

That cross linking quetion was so effing convoluted.

Anyway I hope the grade boundaries are low, from responses so far it seems its been a tough exam for everyone.

Reply 194

i just said it was copolymerisation as I has literally no clue aha.. And for the second I think I put condensation reaction which would account for a lower atom economy

Reply 195

ABCDemily

Original post by Cinamon

saaame the only reason i put addition for the first one was because the next question said that it had a higher atom economy, and i think addition has a 100% atom economy so...

Same here. Initially I put condensation, then changed to addition.

Reply 196

How low can the grade boundary go lol, I need it lowwwwww...

Reply 197

smj14

completely screwed this up :frown:

.
can you get half marks? cause i seem to have "nearly" got the answer so many times but not quite ha. like for the rate constant i got the mol and dm bit right, but forgot to put in per second. if all of that was 1 mark, would iget half a mark? cause i nearly got it right!

Reply 198

Original post by smj14

completely screwed this up :frown:

no you can't get half marks :frown:

Reply 199