flame test colours (1 Viewer)
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Oh ok cheersnah kidding here take a look at these Li, Na, K, Ca, Sr, Ba, Fe (2+ & 3+), Zn are the main ones (pb is the most important to know tho fr make sho u say that u GOTTA USE lead in the flame test)
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wizzkids
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Students are not required to memorise flame test colours for the HSC Chemistry examination.
The syllabus does not require it, and even if a question about flame tests was included, the data would have to be provided either in the formula sheet or in the body of the question.
The HSC Chemistry examination is not testing students' ability to memorise tables of data.
The syllabus states that flame test colours are qualitative for investigation, not quantitative, and they are highly subjective.
You just have to know that flame colours are unique to a particular species, and why they are unique (the emission line spectrum).
The syllabus does not require it, and even if a question about flame tests was included, the data would have to be provided either in the formula sheet or in the body of the question.
The HSC Chemistry examination is not testing students' ability to memorise tables of data.
The syllabus states that flame test colours are qualitative for investigation, not quantitative, and they are highly subjective.
You just have to know that flame colours are unique to a particular species, and why they are unique (the emission line spectrum).
chilli 412
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i dont do chemisty Big Kev but i love younah kidding here take a look at these Li, Na, K, Ca, Sr, Ba, Fe (2+ & 3+), Zn are the main ones (pb is the most important to know tho fr make sho u say that u GOTTA USE lead in the flame test
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you and big kev are my favourite bos users
nah bro @carrotsss ur the OG fr remember when we were studying for HSC last year it's been almost a year how fast has time flown
i still can’t believe how dirty they did us with that individual identity mcq
im so glad I never have to deal with SORs vague bs again that subject was so annoying
like i feel like half the multiple choice were more about having technique and being able to read the examiners minds rather than actual knowledge
chilli 412
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was that the totem one
yeah
I think there have been a few Qs in the past where there were no contextual clues given and needed to know flame colours in short-answers and MCQs:
But yeah I get what you mean by focusing more on the application rather than memorising, thanks
Those were in the old syllabusI think there have been a few Qs in the past where there were no contextual clues given and needed to know flame colours in short-answers and MCQs:
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But yeah I get what you mean by focusing more on the application rather than memorising, thanks
afaik this is the only flame test q in the new syllabus https://educationstandards.nsw.edu....a0-8d67-474a-a8a7-ccda95061656-ogRvEgE#page=4
synthesisFR
afterhscivemostlybeentrollingdonttakeitsrsly
i would assume the ones listed in the syllabus under cations?
synthesisFR
afterhscivemostlybeentrollingdonttakeitsrsly
actually on this note,
what do we have to memorise for this section im rlly confused
in terms of ppt and complexation
theres so many flowcharts idk which one to pick as well as complexation like which ones do i remember.
what do we have to memorise for this section im rlly confused
in terms of ppt and complexation
theres so many flowcharts idk which one to pick as well as complexation like which ones do i remember.
for precipitates just see if it’s on your data sheet, if it is then it’s insoluble (there are 2 slightly soluble ones on the data sheet too but that’s it), you don’t have to memorise anything
synthesisFR
afterhscivemostlybeentrollingdonttakeitsrsly
on this note
hey guys i was wondering if i could see ur notes for the
conduct qualitative investigations – using flame tests, precipitation and complexation reactions as appropriate – to test for the presence in aqueous solution of the following ions: (insert 16 ions)
i just need to precipitation and complexation part bc im having difficulty coming up with a flowchart
i have learnt a couple so am very conrused on what i should be using and knoing.
hey guys i was wondering if i could see ur notes for the
conduct qualitative investigations – using flame tests, precipitation and complexation reactions as appropriate – to test for the presence in aqueous solution of the following ions: (insert 16 ions)
i just need to precipitation and complexation part bc im having difficulty coming up with a flowchart
i have learnt a couple so am very conrused on what i should be using and knoing.