QCE Stuff > QCE Chemistry
QCE Chemistry Questions Thread
keltingmeith:
--- Quote from: Declan.B on September 29, 2020, 01:12:17 pm ---Alright, thank you.
It did seem very complex from what I saw online, as is why I was wondering the year 12 applicable parts. Yet, this is what the syllabus stated on it:
"select and use data from analytical techniques, including mass spectrometry,
x-ray crystallography and infrared spectroscopy, to determine the structure of
organic molecules".
Does this seem to be an error on the QCAA's part with the x-ray crystallography component?
--- End quote ---
I don't know if I'd call it an error - I think they just didn't think it through very well lmao. Usually study designs are made before sample questions, so I think they made the study design, then sat down to write questions and just went, "... fuck, this is harder than I thought it would be".
Declan.B:
--- Quote from: keltingmeith on September 29, 2020, 01:15:42 pm ---I don't know if I'd call it an error - I think they just didn't think it through very well lmao. Usually study designs are made before sample questions, so I think they made the study design, then sat down to write questions and just went, "... fuck, this is harder than I thought it would be".
--- End quote ---
oh ok, thanks for that
babo:
Hello, i was wondering if we needed to know the structures of nanotubes and how they were made. Also for other molecular machines? as the syllabus is very vague about this. do we need to know about their reactions conditions?
keltingmeith:
--- Quote from: babo on October 22, 2020, 02:31:45 pm ---Hello, i was wondering if we needed to know the structures of nanotubes and how they were made. Also for other molecular machines? as the syllabus is very vague about this. do we need to know about their reactions conditions?
--- End quote ---
Had to double-take when you said molecular machines - that's what my PhD project is on, hahah! So, molecular machines themselves (the thing that won the Nobel prize in 2016) are not on the syllabus, so maybe you're using the term to mean something else? I'm guessing you mean molecular manufacturing? (I know it seems like manufacturing and machines should be interchangeable - but annoyingly, they're not, sorry about that. Though presumably for the purposes of QCE, the assessors probably won't mind)
I'm not an authority on this, and I only know as much as anybody else who has read the syllabus. My understanding of that section is that you don't need to be able to go into a great deal of depth about any of this. You should understand that there are things made by very specifically positioning them in certain ways, and not just by having a bunch jumbled around in solution (eg, proteins are made by attaching amino acids to a solid support, such that the end carboxyl group in the primary structure is not available for bonding, but the end amine group is). I don't think you need to give reaction conditions.
babo:
Thanks a lot, i was kind of freaking out about it. i appreciate the clarification!
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version