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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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This is my first year of full-time teaching, and I would not have survived so far without the vast pool of resources available on the InThinking Chemistry site. From teacher prep notes to lab suggestions to last-minute homework assignments to understandings...
Rebecca Weber
International Academy of Macomb (USA)
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We can distinguish three groups of scientific men. In the first and very small group are those who discover fundamental relations. In the second group we have those men who do not make great discovery but who see the importance and bearing of it. The last group contains the rest of us, the men who have to have things explained to us.
Wilder Dwight Bancroft, 1867-1953
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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 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...
- Hello Pete, Since the choice of an appropriate eluent is very much dictated by the polarity of the components in the mixture being separated by chromatography, and often eluents are composed of two or more solvents, it seems to me to have considerable...
- Hi Geoff, I'm trying to aid a student in focusing in on a suitable EE topic. We've ended up getting her onto: the effect of solvent composition (varying ratios of 2 solvents within a mixture) on the separation of pigments via paper/ thin-layer...