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OCR AS Salters Chemistry F332 - Wednesday 23rd May 2012 1:30pm

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Original post by sharon800
i just put delta+ on carbon a a delta minus on all other
the explaination i gave was :- the electronegativities of the atoms, c is more electronegative than c


Would I not get the mark if i didn't write delta?
Original post by megank
For that dot and cross diagram, was it a hydroxide ion?? so just 6 electrons from O and one from H??? or not??


It was a radical I swear
Original post by super121
It was a radical I swear


it was a radical
was there a question about what apparatus you would use to add in a chemical in the titration or am i thinking of a past paper?
Original post by swimming002
was there a question about what apparatus you would use to add in a chemical in the titration or am i thinking of a past paper?


You're thinking of a past paper.
There were only titration calculations.
Can you say solid phosphoric acid catalyst at 300 C and 60 atm?
Original post by AGrumpyMole
Can you say solid phosphoric acid catalyst at 300 C and 60 atm?


no
Original post by SimpleGirl
You're thinking of a past paper.
There were only titration calculations.


thank you!
Original post by megank
Is there an unofficial markscheme yet? x


Check page 66.
Original post by super121
I put growing rice :P

I put breeding cattle. :/
Original post by winningjojo
I put breeding cattle. :/


I put breeding cows.
Original post by dongonaeatu
no


Why not?
Reply 1352
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megank
5
Original post by SimpleGirl
Check page 66.


Thankyou :smile: x seems like chemistry didnt go too badly then :tongue:
Original post by megank
Thankyou :smile: x seems like chemistry didnt go too badly then :tongue:


:yy:
Original post by TheStudent.
I did the same thing

I put the little dots rather than saying Ra but other than that just copied it. :/
Original post by AGrumpyMole
Can you say solid phosphoric acid catalyst at 300 C and 60 atm?



Original post by dongonaeatu
no


What's wrong with what he wrote? Isn't that correct? :s-smilie:
Original post by AGrumpyMole
Why not?



Original post by SimpleGirl
What's wrong with what he wrote? Isn't that correct? :s-smilie:


Phosphoric acid catalyst is strictly for ethene to ethanol.
Original post by dongonaeatu
no


Thats what I put and so did loads of others - its the conditions they give in the revision guide so I can't see why not. :s I put high temperatures and pressures in brackets after the exact figures because found that the atm is debated by everyone I have spoken too. :s-smilie:.
Original post by dongonaeatu
Phosphoric acid catalyst is strictly for ethene to ethanol.


What?! Really?? :eek:
Original post by winningjojo
Thats what I put and so did loads of others - its the conditions they give in the revision guide so I can't see why not. :s I put high temperatures and pressures in brackets after the exact figures because found that the atm is debated by everyone I have spoken too. :s-smilie:.



Original post by SimpleGirl
What?! Really?? :eek:


Winning jojo you are wrong. You are mistaking phosphoric catalyst with potassium dichromate. Phosphorate acid is strictly for ethene to ethanol. Really.

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