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Edexcel IAL Chemistry Unit 1 (WCH01 )/ May 27 June 2016

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Original post by a.adi1998
guys what was the total volume i ticked 150 cm


I said 150 too
Original post by Sunethra
I said 150 too

big like i hope its correct what do u think sunethra?
Original post by a.adi1998
guys what was the total volume i ticked 150 cm


150 is totally wrong see cl was in excess it had 50cm^3 and h2 had 25 cm^3 so ratio was 1:1 and 25 cm^3 cl reacted product was 50 cm^3 and cl2 unreacted was 25 cm^3 so 50+25=75 haha lol
Original post by Sunethra
I said 150 too


150 is totally wrong see cl was in excess it had 50cm^3 and h2 had 25 cm^3 so ratio was 1:1 and 25 cm^3 cl reacted product was 50 cm^3 and cl2 unreacted was 25 cm^3 so 50+25=75 haha lol
Original post by MrBioBombastic
150 is totally wrong see cl was in excess it had 50cm^3 and h2 had 25 cm^3 so ratio was 1:1 and 25 cm^3 cl reacted product was 50 cm^3 and cl2 unreacted was 25 cm^3 so 50+25=75 haha lol


If u say so twice we believe it 😉

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Original post by Saad69
If u say so twice we believe it 😉

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Sup Gillani?
i finished on time , i think the exam took too long to finish , this the only paper i took that much to finish it , anyone felt the same ??
Original post by Saad69
If u say so twice we believe it 😉
Did i say it before ? Lol may be i copied the older post 😂😂

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Did i say it before 😂 May be i copied the older post
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Original post by Sandy_Vega30
Hey guys! This is the official thread for the Chem Unit 1 exam on May 27, Who else is giving it? How is your revision?


anyone got unofficial marking schemes for this paper?
Original post by Koo's
anyone got unofficial marking schemes for this paper?


I looked around but its too soon to release an unofficial mark scheme. So, hopefully we'll get it soon.
Original post by Sandy_Vega30
I looked around but its too soon to release an unofficial mark scheme. So, hopefully we'll get it soon.


Very unlikely one will be released

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Original post by Arzam45
Did you get -2868.5 kJ/mol ?


Yaas😍
Original post by a.adi1998
in the one about enthalapy of combustion did they say to show ur work?


They said for the first part yes😊
can someone help me?😭😭
Use the Born-Haber cycle and the following reactions to calculate the ionization energy of sodium.

Na (s) + ½ Cl2 (g) NaCl (s) ∆Hf° = -411 kJ/mol

Na (g) Na (s) ∆Hf° = -108 kJ/mol

½ Cl2 (g) Cl (g) ∆Hf° = +122 kJ/mol

Cl– (g) Cl(g) + e– ∆Hf° = +349 kJ/mol

Na+ (g) + Cl- (g) NaCl (s) ∆Hf°= -788 kJ/mol
Select one:
a. -14 kJ/mol
b. -836 kJ/mol
c. 14 kJ/mol
d. +836 kJ/mol

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