AQA CHEM4 - 13th June 2012

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Here u go. I got the question paper for chem 4, but its too big for me to upload onto here. Btw i dont have the chem 4 mark scheme.

Hey, how did you get on with the exams? :h:

Reply 1581

shuaib786

Original post by Doctor.

Hey, how did you get on with the exams? :h:

Yeah they were good, you?

Reply 1582

Doctor.

Original post by shuaib786

Yeah they were good, you?

They went okay :smile:

Got a B in CHEM4! Although I found it really hard, so I'm happy :tongue:

Reply 1583

shuaib786

Original post by Doctor.

They went okay :smile:

Got a B in CHEM4! Although I found it really hard, so I'm happy :tongue:

Congrats, so medicine next year then?

Reply 1584

Soul_Eater

Original post by shuaib786

Here u go. I got the question paper for chem 4, but its too big for me to upload onto here. Btw i dont have the chem 4 mark scheme.

thx!!! still need to find the markscheme for CHEM4 somehow :s-smilie:

Reply 1585

creme224

Original post by MustyQ

please can anyone post the aqa chemistry unit4 paper for june 2012?
pleasee reaally need it :smile:

Hi, do you have the Chem4 June 2012 paper? Could you please upload it?
Thanks :smile:

Reply 1586

:)Smiley!:)

Hey I was wondering has anyone got the june 2012 paper and or/markscheme

Reply 1587

Scienceisgood

Anyone here have the official mark scheme for this?

Reply 1588

GreenOut

Revision methods? Atm I'm just reading and re-reading the book and doing past papers, effective enough I suppose but wondering if anyone has anything different that works for them? All ideas are appreciated, please and thank you. :smile:

Reply 1589

king101

Original post by tr12

Theres another unit 4 thread for this

Posted from TSR Mobile

Reply 1590

creme224

Hi guys ive uploaded the question paper and mark scheme for june 2012 chemistry Unit4

Hope it helps :smile:

AQA-CHEM4-W-MS-Jun12.pdf242.8KB

AQA-CHEM4-QP-Jun12.pdf820.1KB

Reply 1591

creme224

Hey i just uploaded it, check down below. Hope it helps :smile:

Reply 1592

Humbiolog

Can anyone explain question 2c (i) from June 2011 unit 4 I'm really stuck ;(
thank you in advance

Reply 1593

Secret.

Original post by Humbiolog

Can anyone explain question 2c (i) from June 2011 unit 4 I'm really stuck ;(
thank you in advance

HA + OH- = A- + H2O

Work out the moles of HA, OH- and therefore A-
Sub it (remember to change to concentrations) in to the equation for Ka

Reply 1594

cwilloughby

Your answer was incorrect, Just for the record. 0.025* 0.085 does not equal 2x10^-3 it infact equals 2.125x10^-3 shifting the overall answer to 1.769 = 1.77 which is the mark scheme answer. I have my exam on monday and could never seem to get these quite write but your method helped me get it so thank you