CHEM2 papers

The CHEM2 paper is next Monday and although you have probably had plenty of practise already, you may feel the need for some further fine tuning with past paper questions. Knock yourself out with these.

They are old syllabus questions, which means that the CHM2 papers represent mostly the thermodynamics and inorganic chemistry stuff, and the CHM3 papers are all your organic chemistry work. There may be the odd thing that is now taught as part of CHEM1, like the content on oil or structural isomerism, but most of the following papers will help you prepare fully for next week.

CHM2 written paper June 2008
CHM2 mark scheme June 2008
CHM2 written paper June 2009
CHM2 mark scheme June 2009

CHM3 written paper June 2008
CHM3 mark scheme June 2008
CHM3 written paper June 2009
CHM3 mark scheme June 2009

Any problems with the links, or if you need any more papers, let me know via email.

calorimetry

Calorimety calculations come up pretty often on your CHEM2 paper, and any Year 13 students might also expect them as synoptic content on CHEM5.

The powerpoint you can download from the link below will remind you of the basics and give you worked examples for a number of calculations.

calorimetry worksheet answers

hello George

Here you go George, as requested. You must be special, you've got your own post. This is the CHEM2 paper you did last summer with the corresponding mark scheme.

CHEM2 June 09 paper

CHEM2 June 09 mark scheme

Good luck with it tomorrow. If you need anything else or any last minute help use the email at the top of the page (reasonable hours though eh?)

module 2 and 3 past paper answers

If you're not already maxed out on past papers, here you can find access to papers from 2005 and 2006 that you will not have seen before. You can download both the paper and the mark scheme seperately.

AQA past papers

Also, if you are still thirsty for more I have the answers to the homework booklets we have used sporadically throughout the last few months. However, beware that some questions contain content that has now been removed from the syllabus (eg. any reference to thiosulphate titration calculations for CHM2 and the mechanism for the dehydration of alcohols to alkenes for CHM3). The content changed slightly when the papers moved from 90 mins to 60 mins in length. If unsure, ask.

AS2 answers (green booklet)

AS3 answers (blue booklet)

Best of luck with the forthcoming exams, and don't forget that you can always come in for help while you are off on study leave.

year 12 rates answers

When you have managed to have a go at the worksheet on the earlier post have a look at the answers here.

rate of reaction answers

Remember to also make sure you are happy with the Maxwell-Boltzmann distribution. Exam questions, particularly the longer type section B variety, commonly focus on this.

year 12 work for paternity leave

Right then. I'll be back in on Friday, but to keep you going you need to read up about kinetics (rates of reaction) on pages 106-109 of your AS text book. If you didn't get one you'd better sort yourself out with one from the prep room in Science (£20 deposit that you can get back when you return it).

Most of the kinetics stuff eg. collision theory, is very similar to your GCSE work. The only significant new content is the Maxwell-Boltzmann distribution of molecular energies (look it up and make sure you can draw, label and explain the graphs appropriately for different temperatures).

Obviously this is only a short topic for module 2, and should be quite straightforward for you to get to grips with yourself. Make sure you try these questions on the downloadable worksheet below.

rate of reaction

You will need to get some graph paper to complete this. I'll post some answers later in the week.

Also have a look at this to help your understanding of the Maxwell-Boltzmann distribution.

Maxwell-Boltzmann

Finally, try some of the questions on pages 110-111 of the text book to check your understanding (answers are in the back).

organic mechanisms

All the organic mechanisms you need for CHM3 (now CHEM2) and CHM4 (CHEM4). The link below will take you to a file sharing site where you can either view or download the presentation.

organic mechanisms