Official OCR Chemistry A F321 27th May June 2016 Watch

Chesni556
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#21
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#21
It was about the orbitals relative energies in a nitrogen atom
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Ezexamsalltheway
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#22
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#22
(Original post by K3zz4)
I think they meant the energy levels of the nitrogen sub-shells question underneath the table.
Thank the lord. Also since your here was there any ionisation questions. I cant remember ? Just worried I may of missed a page :P
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pingew
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#23
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#23
Kinda scared the grade boundaries will be really high since it was a pretty simple paper 😰
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Pingu7
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#24
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#24
Did anyone else find that paper harder than past papers? as in it was more writing formulas and equations and it was too simple to the point where you may over complicate it. Hardly any past paper questions popped up e.g. water of crystallization, electrical conductivity etc. I believe I did worst than last year.
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Needhelpasap
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#25
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#25
what answers did everyone get?
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BrownGuyIrfan
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#26
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#26
1.20 anyone?
non Liner 104.5
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K3zz4
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#27
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#27
There was the one about which element had the lowest 4th ionisation out of the second and third period but that's about it I think
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johnjims828
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#28
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#28
(Original post by K3zz4)
I used two test tubes.
Bromine water + calcium iodide (turned purple)
Bromine water + barium chloride (turned orange)
Bromine is not reactive enough to displace chloride ions. Only the first reaction that you wrote can happen.
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Pingu7
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#29
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#29
(Original post by johnjims828)
Bromine is not reactive enough to displace chloride ions. Only the first reaction that you wrote can happen.
I wrote that my ionic equation was br2 (aq) + 2I- (aq) = 2br- (aq) + i2 (aq) and turns violet
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Lotty_A
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#30
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#30
Just about survived but screwed up the simple dot-cross diagram for nitrogen so kicking myself a bit!
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:)))))))))))
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#31
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#31
can anyone explain what they got for the mass in the last question???
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Sparklez10
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#32
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#32
0.120g I got
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hafiz97
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#33
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Most of the question left me with doubt answers, for example "what type of redox reaction is it" or "Write a formula for the acid formed". Some people said it was straight forward other in my school said there were a lot of trick questions. Overall I found it difficult, probably lost 10-11 marks
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yasin mohammed
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#34
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#34
i feel the same way tbh
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johnjims828
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#35
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#35
(Original post by Sparklez10)
0.120g I got
same here
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johnjims828
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#36
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#36
(Original post by hafiz97)
Most of the question left me with doubt answers, for example "what type of redox reaction is it" or "Write a formula for the acid formed". Some people said it was straight forward other in my school said there were a lot of trick questions. Overall I found it difficult, probably lost 10-11 marks
disproportionation reaction where an element is both oxidised and reduced in a redox i thought the paper was quite easy compared to the past papers at most i lost 5 marks
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johnjims828
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#37
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#37
(Original post by BrownGuyIrfan)
1.20 anyone?
non Liner 104.5
i got 0.120
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johnjims828
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#38
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#38
(Original post by Lotty_A)
Just about survived but screwed up the simple dot-cross diagram for nitrogen so kicking myself a bit!
i almost did first time through i drew a nitrogen atom on its own lol
one silly mistake i did make though was calling sf6 sulfur fluoride which is probably incorrect
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BrownGuyIrfan
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#39
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#39
(Original post by johnjims828)
i got 0.120
AH eyah that's what i meant. It's correct! Mark schemes on twitter. Got 50/60 :/ Really needed full ums as my f322 as grade was an e xD hopefulyl the resit goes better
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