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Chemistry (New Syllabus)
IB DP Category 2
Stockholm, Sweden, 3 - 5 May 2024
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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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What is man, when you come to think upon him, but a minutely set, ingenious machine for turning, with infinite artfulness, the red-wine of Shiraz into urine?
(Baroness Karen Blixen, 1885-1962)
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This is an outstanding and excellent resource. I found it very useful for me and my students. The website covers all the needed details for the teachers and the students.
Osama Salah
Modern American School of Egypt (Egypt)
BlogSee all
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
- Right! The question! That's what I missed :) I was actually looking at the answer only because of the example in the textbook, giving it other way around, so...anyway, it makes sense that gaseous state standard bond enthalpies should be used...
- Hi Demet, I guess it is all to do with answering the question. The question starts, "Use the bond enthalpies and average bond enthalpies...." rather than "Use the enthalpies of formation....". If you just use enthalpies of formation all you...
- Hi, Slide 14 Q2 ; why don't we use formation enthalpies of CO, O2 and CO2 for delta H1 and H2? Am I missing something?Thanks!
- Thank you Alastair. The elemental analysis had been misplaced in the question. It should be OK now.