With CHEM4 just around the corner in January, you may need to download these mark schemes for the past papers you have been given in class in case you have missed any of the feedback. Remember to ignore any reference to Kp calculations (and partial pressures) in equilibria questions as they are no longer on your syllabus. Likewise, if you try any of the older papers you may see some titration curves involving two seperate equivalence points (for either sodium carbonate or ethanedioic acid). Again, ignore them, they are no longer on your syllabus.
Jan 08 mark scheme
Jan 09 mark scheme
If you still feel the need for a bit more practise from the older papers, you can find any other examples you may need on the AQA website.
other old module 4 papers
You should also have received a specimen paper for the new CHEM4 exam, the mark scheme is below.
CHEM4 specimen mark scheme
Finally, these have been posted elsewhere on this blog and some of you may have had them from me directly, but the following are essential resources for revision of organic reactions and mechanisms.
organic mechanisms
organic reaction scheme
3 comments:
thank you so much for all the extra help sir, your the best :)
when i click on the jan 09 mark scheme and download it the mark scheme doesnt come up th qeston paper comes?? how do i get to the markscheme?
its ok now ive found the markscheme
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