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OCR A Chemistry AS Unit 1- F321 Atoms, bonds and groups -May 22 2015

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Original post by 09sstinson
You had to use the volume that neutralised both MINUS the volume that neutralised NaOH. So the answer was lower. I got 1.55


Fudge this sounds right
Original post by Nucleotide
Fudge this sounds right


yup its sounds right fml
Rip academic life
Reply 183
Avatar for ramlo
ramlo
what was the answer to the ionic lattice question?
Original post by EastGuava
Rip academic life


You feel me
Original post by YourMumOnToast
I got 1.21 or something, everyone seems to have different answers in my 6th Form


I don't remember this quesion. What question was this?
Original post by SeaSquab
I think I got Manganese was reduced from +4 to +2 and Chlorine was oxidised from -2 to 0. Don't quote me on it my memory is shady.


I think Cl went from -1 to 0. However, I too have a shady memory.
Reply 187
Avatar for Semger
Semger
1
Original post by AlistairMcDonald
I think Cl went from -1 to 0. However, I too have a shady memory.



Yep I believe you are correct sir.
Unofficial mark scheme plsssss
realising how many stupid mistakes I made
What was the empirical formula one?
What do you guys think about the grade boundaries of this exam?
Original post by AlistairMcDonald
I think Cl went from -1 to 0. However, I too have a shady memory.


Yeah that's right I think
Original post by ElPatcho
Sick of these exam boards unloading heaps of **** onto my head just because it's the final year of the syllabus. The same happened with my physics, and now this crap paper, hopefully the grade boundaries are low.


Does that mean we can't retake this if we fail?
Original post by Semger
Yep I believe you are correct sir.


Ooh 'sir'! I thank you!
to my knowledge this exam paper harder than last year's exam paper I think this year grade boundary for A will be 44, hope it went well for u guys

anyone wana develop a unofficial mark scheme?
Original post by AlistairMcDonald
I think Cl went from -1 to 0. However, I too have a shady memory.


mn went from +4 to +2??? from what I remember I think
Original post by Pine3278
Does that mean we can't retake this if we fail?


*probably incorrect info*

I think we can, however it'll be a paper for resits only, so I imagine it will be disgustingly difficult.
Original post by mybutton jammed
mn went from +4 to +2??? from what I remember I think


Yeah, at least that's what I got.
Original post by SeaSquab
What was the empirical formula one?


6:1.5:1 but I x2 to get 12:3:2 that way you get Tm2(SO4)3 or something
Original post by SeaSquab
What was the empirical formula one?


I put the smallest ratio of atoms in the molecular formula I'm not sure will check now

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