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OCR Chemistry B (Salters) F334/F335 Exam Thread 2016 (14th/22nd June)

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Reply 700
it was easier probe gonna be about 85 marks for A
I got -2.9 degrees, as you have to consider that 1 mole of NaCl gives 2 moles of particles in solution, and 1 mole of CaCl2 gives 3 moles of particles (ions) in solution.
Wow. That was defo harder than last year.
If you think last years was harder than you are stupid.

This was easily one of the hardest, if not the hardest f335....
Original post by dansag
yes yes its BIG D


Yo!
Reply 705
What did people draw for the 3D structure of that nitrogen ring thing


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Reply 706
This was the hardest paper by far
Reply 707
Original post by Zuzuvela
I put HCl for first one and ammonia for second one?


I put that too 👍


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Reply 708
i got -120 for the enthalpy
-3 (-2.9 rounded) for the freezing point
something about 4 and 7 for the two pH questions
the value for n in FeO(OH) nH2O i got it as 1
and y= 3 but not sure about the working out, i used oxidation states as (Oxygen's which is always -2)y+ 3(Fe's)=0. Fe is +2 or +3, with +3 it gave a fraction and with +2 ig gives Y=3
Reply 709
Original post by Edsi
i got -120 for the enthalpy
-3 (-2.9 rounded) for the freezing point
something about 4 and 7 for the two pH questions
the value for n in FeO(OH) nH2O i got it as 1
and y= 3 but not sure about the working out, i used oxidation states as (Oxygen's which is always -2)y+ 3(Fe's)=0. Fe is +2 or +3, with +3 it gave a fraction and with +2 ig gives Y=3


Got the same enthalpy change, -5.something for freezing, guessed the value of n lol and got y=3


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Reply 710
Original post by HPPPPPPP
I put ammonia for the second but not HCL :/


Am I the only one who put hydrogen for the first one😂
Reply 711
how many marks was fe0y one?
Reply 712
Original post by iJAKE
how many marks was fe0y one?


it was 2 i believe
How many hydrogen environments did people get for the question labelling the H environments.

Also what colour did you put the iron as for the reflects be spectrum. I put yellow?
Reply 714
Original post by geor_thor
How many hydrogen environments did people get for the question labelling the H environments.

Also what colour did you put the iron as for the reflects be spectrum. I put yellow?


I put green
how many proton environments did you get for the compound with benzene?
How did you draw the E isomer? I just a wedge and a line coming out
Reply 717
Original post by nilda
it was 2 i believe


okay cheers:smile:
Reply 718
Original post by Fishhy34
how many proton environments did you get for the compound with benzene?


I got 6
what did you put for the one about the electrophilic additon , it was on the second page talking about the different prodcuts forming...

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