The two most recent pages are free. You can access other free pages from the sitemap. The blog is also free.
Dynamic equilibrium - free
Once you have explained the concept of dynamic equilibrium it is worth challenging your students by asking them to suggest how it could be shown experimentally that either chemical or physical equilibrium... more»
Le Chatelier's principle - free
Using a colour change is one of the best ways to demonstrate chemical equilibrium and Le Chatelier's principle. In fact students will already have met a simple example when they used an... more»
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The relationship between the value of k, the rate constant, and temperature is given by the Arrhenius equation: k = A exp(–Ea/RT) where k is the rate constant, A is another... more»
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Just a question that a student of mine once asked which you might like to reflect upon. We were looking at nucleophilic substitution reactions and specifically at Assessment statement 20.2.1 which asks... more»
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Scavenging for waste metal in Freetown, Sierra Leone This topic can be used to good effect for both 'Aim 8' and CAS (Creativity, Action & Service). One of the problems with putting waste... more»
Learner Profile - free
The 'IB Learner Profile' was introduced during the last decade and is detailed in a booklet first published by the IB in 2006. It aims to bring a shared set of values... more»
Previous: Periodic table, Entropy questions, Rate expression, Collision theory, Reaction rates, Reaction rate questions, Rate-dependent factors, CaCO3 in egg shells (free), Spontaneity ..... more»
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Blog
Is IB chemistry too easy?
Posted on 04 May 2012 by Geoffrey Neuss
Has IB Chemistry 'dumbed down' over the years? This is a difficult, if not impossible, question to answer as the skills and knowledge that a student taking the programme now are required to master are very different to those from... more»
Nanosponges
Posted on 16 April 2012 by Geoffrey Neuss
A sponge that can absorb 100 times its own weight in oil. This novel way to clean up oil spillage using carbon nanotubes has recently been reported in Scientific Reports by a team working at Rice University. Nanotechnology is one... more»
Origin of the moon
Posted on 01 April 2012 by Geoffrey Neuss
As well as being a fascinating subject in its own right Chemistry can be used as a tool to solve many problems. One interesting example that has emerged recently is “What is the origin of the moon?” The most usual... more»
Monthly Feature
Genius – The life and science of Richard Feynman by James Gleick.
It perhaps seems to be strange recommending a book about a physicist but this biography of Richard Feynman is written by James Gleick, the author of the best-selling book on Chaos. It is very readable and explains much about particle physics and quantum theory which is also relevant to chemistry. In fact Feyman, who arguably was the second best physicist of the last century (behind Einstein) wrote his first major thesis at MIT on intermolecular forces. The book also talks much about the nature of scientific discovery and the man behind the scientist.
Recent Comments
Yes - work still in progress - although there are already multiple choice tests, practicals and Aim 8/TOK/International dimension etc... more»
Geoffrey Neuss, 08 May 2012
Did I miss something about when Topics 7/17, 8/18, 9/19 and 10/20 will have their own sections?... more»
Lowell Thomson, 05 May 2012
He was a brave man! I found a bottle in the prep room when I arrived at Atlantic College that... more»
Geoffrey Neuss, 15 April 2012
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Geoffrey Neuss is the Principal Examiner for Chemistry Extended Essays and writes many of the IB Chemistry exams. He has a Ph.D. in organometallic... more»
Quote of the Day
“It is notorious that the same discovery is frequently made simultaneously and quite independently, by different persons. Thus, to speak of only a few cases in recent years, the discoveries of photography, or electric telegraphy, and of the planet Neptune through theoretical calculations, have all their rival claimants. It would seem, that discoveries are usually made when the time is ripe for them – that is to say, when the ideas from which they naturally flow are fermenting in the minds of many men.”
Resources
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Chemistry for the IB Diploma by Geoffrey Neuss. |
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Chemistry Course Companion by Geoffrey Neuss. |
Twitter: geoffneuss
Is IB chemistry becoming too easy and not preparing students properly to study science at university? http://t.co/1LjhjZzh
04 May 2012
3-D reversible nanosponges cross-linked with boron can soak up oil spills http://t.co/BA59VLw6
16 April 2012
How one school is approaching the viva voce for the IBDP Extended Essay http://t.co/64txIdjW
07 March 2012
Chemists are getting younger.10 year old girl is the co-author of a paper on a molecule she discovered serendipidously. http://t.co/Ds4c4avb
13 February 2012
The link to the Chemistry Subject Guide does not work any more. Kind Regards... more»
Jon Bell, 13 May 2012