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how was chemistry p42?

how was the paper

  • super easy

    Votes: 5 11.9%
  • easy

    Votes: 9 21.4%
  • average

    Votes: 13 31.0%
  • hard

    Votes: 7 16.7%
  • very hard

    Votes: 4 9.5%
  • it was a nightmare

    Votes: 4 9.5%

  • Total voters
    42
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Points
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hi, for the bond energy of chlorine radical, did you divide bond energy of chlorine by 2?
no discussion is allowed before 24h but i`ll atleast say this. i think what you are saying only applies to the atomisation enthalpy.

let X J be the bond energy of bond X-Y.regardless of whether another bond is breaking or forming, X J is required to break 1 mole of the bond X-Y and thats it.
 
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no discussion is allowed before 24h but i`ll atleast say this. i think what you are saying only applies to the atomisation enthalpy.

let X J be the bond energy of bond X-Y.regardless of whether another bond is breaking or forming, X J is required to break 1 mole of the bond X-Y and thats it.

will i get marks for calculations?
 
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so what did you guys get as pH , mass in partition coefficient question and enthalpy change for chlorine and iodine question?
and also for the two organic questions what did you get as the OTHER products?
i wrote nacl and nh4oh( 1 H missing to form h20)
 
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The most stupid quest was that 3 mark organic when u add oh u just had to replace one nucleophile :p I gues I messed up ph and some other minor stuff
That 4 mark lowry bronsted question was just pathetic couldn't get it till the end
Overall the paper was stupid or just coz my bad luck the little stuff that I didnot study came I fell sorry about ph it was like I did everything correctly and then I prayed that I get this right and I think messed up right after that :( hope so gt would be around 64-68
 
Messages
42
Reaction score
11
Points
8
The most stupid quest was that 3 mark organic when u add oh u just had to replace one nucleophile :p I gues I messed up ph and some other minor stuff
That 4 mark lowry bronsted question was just pathetic couldn't get it till the end
Overall the paper was stupid or just coz my bad luck the little stuff that I didnot study came I fell sorry about ph it was like I did everything correctly and then I prayed that I get this right and I think messed up right after that :( hope so gt would be around 64-68

hope its even lower coz mine was messed up alot
 
Messages
158
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Points
38
hey guys how many mol of naoh was added in the pH question was it 0.3 or 0.03?
 
Messages
67
Reaction score
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I think what I remmb was that it was 0.3 or .03 bit was in the same digit ratio ad the acid like either it was .5 or .05 coz there was large amount of base added as I remmb there may be problem just what I remmb :)
 
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