Edexcel Chemistry Unit 1 IAL (WCH01) Core principles of chemistry - 23rd May 2014 Watch

Ripper Phoenix
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#61
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#61
GUYS WE CAN DISCUSS THE RULES WERE CHANGEd!!!!!
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Fattyma97
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#62
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#62
What do u mean?

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Ripper Phoenix
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#63
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#63
We can discuss it is allowed!!! Seee above!! The rules have been changed!!
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Fattyma97
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#64
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Oh ok, Umm what did u guys get for lattice energy value?

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Ripper Phoenix
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#65
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(Original post by Fattyma97)
What do u mean?

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i mean that studentroom mods finally realised that papers are done at the same time! so theres no chance of leakage! therefore lets discuss! can anyone post a mark scheme? how did u find the MCQ's! which was the hardest one?
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Ripper Phoenix
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#66
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(Original post by Fattyma97)
Oh ok, Umm what did u guys get for lattice energy value?

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-1046.. or 1064 not sure but around that value :P
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Fattyma97
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#67
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Yessss I got that too and enthalpy change of combustion was -76 right?

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Ripper Phoenix
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#68
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(Original post by Fattyma97)
Yessss I got that too and enthalpy change of combustion was -76 right?

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yupp
join here!!!! http://us21.chatzy.com/63380902408039 tell anyone who sat the paper too!!!
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Ripper Phoenix
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#69
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GUYS JOIN THIS CHAT GROUP SO WE DISCUSS!!! http://us21.chatzy.com/63380902408039
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LianneAmeer
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#70
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#70
What did u guys choose for that what is meant by moles multiple choice.
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Torto
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#71
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#71
That was quite easy as C1 papers go
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Nid03
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#72
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(Original post by SOREN_TORETTO)
Haha yea what do you think the grade bondaries will be
Probaby something like 62-65

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Vivekmaj
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Okay for the orbitals question I got 10, 6, 18 idk if I'm right, the lattice enthalpy was -1046kj/mol, the mean bond enthalpy value calculated was -413, the bond enthalpy for C-C was -347, I wrote Br(-) for the electrophile I think I'm wrong there
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Ripper Phoenix
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#74
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(Original post by Vivekmaj)
Okay for the orbitals question I got 10, 6, 18 idk if I'm right, the lattice enthalpy was -1046kj/mol, the mean bond enthalpy value calculated was -413, the bond enthalpy for C-C was -347, I wrote Br(-) for the electrophile I think I'm wrong there
yo why did u leave the chat? ask there?
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Vivekmaj
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#75
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(Original post by Paras Agarwal)
yo why did u leave the chat? ask there?
To messy can't figure out **** from there
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saifulahmed
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#76
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(Original post by Vivekmaj)
Okay for the orbitals question I got 10, 6, 18 idk if I'm right, the lattice enthalpy was -1046kj/mol, the mean bond enthalpy value calculated was -413, the bond enthalpy for C-C was -347, I wrote Br(-) for the electrophile I think I'm wrong there
yes you are wrong. electrophiles are negative charge LOVERS!so obviously positive!
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Vivekmaj
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#77
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(Original post by saifulahmed)
yes you are wrong. electrophiles are negative charge LOVERS!so obviously positive!
But is everything else that I wrote correct
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saifulahmed
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#78
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(Original post by Vivekmaj)
Okay for the orbitals question I got 10, 6, 18 idk if I'm right, the lattice enthalpy was -1046kj/mol, the mean bond enthalpy value calculated was -413, the bond enthalpy for C-C was -347, I wrote Br(-) for the electrophile I think I'm wrong there
for orbital i think the third one will be 8 or 16.
for the rest i hope they are correct cause i got the same answers.
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noosh_s
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#79
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there was two multiple choice questions identical to past papers.. both of the avogadros constant ones had been in 2013 and 2012 papers :P
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noosh_s
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#80
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could someone make an unofficial mark scheme please???
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