How was Chemistry 42?

[littlecloud11]

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.

 

[Ibnul Alam]

This paper was very demoralizing. P3 went bad as well due to mental stress gained from this paper

 

[Ibnul Alam]

I don't think I'll get even 50 in it :'(

It was a disaster!

same here.

 

[Jinkglex]

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

 

[Jinkglex]

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.

 

[Doggybros]

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.

So you mean a phenol with ch2cl right? Does it matter where we place the oh and ch2cl groups in the ring?

 

[Doggybros]

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.

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........

 

[Doggybros]

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

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???

 

[littlecloud11]

So you mean a phenol with ch2cl right? Does it matter where we place the oh and ch2cl groups in the ring?

Nope. The position won't matter.

 

[Soulgamer]

The paper was way out of the norm as per previous past papers. GT will definitely be 56-60.

 

[Angie XX]

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.

 

[Soulgamer]

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.

Yeah, that's the answer.

 

[Jinkglex]

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........

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 IA

 

[percolatormalwa]

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???

Super freaking insane. They should consider a delayled Errandum for that unclear picture.

 

[Aamer Faiyaz]

and how many moles of H2 did you guys get? As well as the moles with cold NaOH and hot NaOH?

 

[messi10]

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

10-12 marks gone?

Haha, I left 10-12 mole of marks blank
did 20-25 wrong.. I'm screwed!

 

[daisyy]

what are ur expectations for full A level Chemistry gt for getting A* this year?? and what was the equilibria answer???

 

[ganapathynar]

I got 3 moles of hydrogen; 3 moles of cold NaOH and for hot i got it wrong because i got 7

and how many moles of H2 did you guys get? As well as the moles with cold NaOH and hot NaOH?

 

[ganapathynar]

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.

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

 

[littlecloud11]

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

As long as your calculation and method was all okay and you only exchanged the answers, you should only be losing the answer mark, so I'd say 1.