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IB Approved Workshops
Chemistry (New Syllabus)
IB DP Category 2
Berlin, Germany, 23 - 25 August 2024
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Chemistry (New Syllabus)
IB DP Category 1
Online (IB Approved), 25 - 27 October 2024
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Recommendations
This is my go to resource for teaching IB HL Chemistry. I have been teaching for the past 19 years and I can say this is by far the best resource that I have ever taught with. The website taught me how to efficiently teach with the most clarity. My IB...
Neil Corrigan
St Edward High School (USA)
Quote of the day
No isolated experiment, however significant in itself, can suffice for the experimental demonstration of any natural phenomenon; for the ‘one in a million’ will undoubtedly occur, with no less and no more than its appropriate frequency, however surprised we may be that it should occur to us.
Ronald Aylmer Fisher, 1890-1962
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A useful chromatography resource from the RSC
The Royal Society of Chemistry has just published a useful resource for students that covers chromatography for the 16-18 year age group. It...
Progress in carbon capture?
This blog looks at a promising recent development which could lead to capturing carbon dioxide emissions from the combustion of fossil fuels...
Subscriber commentsSee all
- Hi Geoff, Thanks so much for your quick reply. That is a great stress reliever. Pete
- Ah, yes the total calculate enthalpy is 5! Thank you
- Hi Carol, I think the confusion arises because there are 5 bond enthalpies involved in the calculation of the enthalpy change and the value for the calculated enthalpy change works out to be 5 kJ mol-1. As you say to find the percentage uncertainty...
- Hi, I am looking at a question form Nov 2023 SL P2.Assuming a 0.1 % uncertainty for each bond enthalpy, determine the resultant percentage uncertainty of the calculated enthalpy change of the reaction.The answer says you must add the absolute...