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what were the order of the reactions? :l
For the buffer, volume of sodium ethanoate was 85cm^3 and the acid was 15 cm^3
And the order was 1 with respect to both.
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what were the order of the reactions? :l
same here.I don't think I'll get even 50 in it :'(
It was a disaster!
So you mean a phenol with ch2cl right? Does it matter where we place the oh and ch2cl groups in the ring?The compound was an arene but it didnt have an acid or amide group. It was a benzene ring with a -CH2-Cl group and an -OH group attached to it.
It's really hard to just "chill", I'm still shaken from that mathematics paper 32 I took immediately afterward. And I think that the applications portion usually determines most of the threshold, and it was quite easy compared to the previous years' papers. The rest was moderately difficult, but not too difficult. I too suspected it would be 58 or something around that, certainly not over 60 and certainly not below 55. However, CIE is notorious for crazy thresholds, lets see what happens........And for everyone freaking out over the paper, guys relax. I honestly think this is not going to touch the 60's mark. Paper was completely abstract from any of the past 7-8 year papers. Im expecting it to be a 56-59 threshold max.
I was lucky to remember at the last moment to subtract -1 from the shifts due to presence of arene. And I was going to mention exactly what you did. The nmr was freaking insane, couldn't see if it was a triplet or doublet. Why the hell do they need to mess up a graphic created by a computer???The brits couldnt even print the nmr Peaks properly. That made it really confusing. But thank god i completed the paper with 15mins in hand. so the compound had an arene,an acid group and an amide group too
So you mean a phenol with ch2cl right? Does it matter where we place the oh and ch2cl groups in the ring?
The buffer question is not that hard, as many of the terms can be eliminated.
I think the answer is 15cm3 for acid and 85cm3 for salt.
I know man, its hard to get over a bad paper, i know the feeling as obviously, but getting stuck on something is just worse. Im sure we will all do well IAIt's really hard to just "chill", I'm still shaken from that mathematics paper 32 I took immediately afterward. And I think that the applications portion usually determines most of the threshold, and it was quite easy compared to the previous years' papers. The rest was moderately difficult, but not too difficult. I too suspected it would be 58 or something around that, certainly not over 60 and certainly not below 55. However, CIE is notorious for crazy thresholds, lets see what happens........
Super freaking insane. They should consider a delayled Errandum for that unclear picture.I was lucky to remember at the last moment to subtract -1 from the shifts due to presence of arene. And I was going to mention exactly what you did. The nmr was freaking insane, couldn't see if it was a triplet or doublet. Why the hell do they need to mess up a graphic created by a computer???
10-12 marks gone?I've lost 2 from bromine with phenylamine [i replaced NH2 with Br :/]
atleast 2 from NMR
now that my condensation one seems wrong, 2 marks from there
4 from buffer, maybe 3 if they accept my formulae
so...10-11 marks gone. xD
and how many moles of H2 did you guys get? As well as the moles with cold NaOH and hot NaOH?
How many marks will i get if i interchange them? Like 85 cm^3 acid and 15 cm^3 base. I think that is another silly mistakeFor the buffer, volume of sodium ethanoate was 85cm^3 and the acid was 15 cm^3
And the order was 1 with respect to both.
How many marks will i get if i interchange them? Like 85 cm^3 acid and 15 cm^3 base. I think that is another silly mistake
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