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September 11, 2025, 03:00:30 am
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Author Topic: Practice exams for the current syllabus  (Read 10012 times)  Share 

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maine

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Re: Practice exams for the current syllabus
« Reply #30 on: June 07, 2009, 11:30:07 am »
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The TSFX one has me close to tears
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Mao

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Re: Practice exams for the current syllabus
« Reply #31 on: June 07, 2009, 12:01:54 pm »
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Quote from: maine on June 07, 2009, 11:30:07 am
The TSFX one has me close to tears
TSFX is notorious for being retarded
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kurrymuncher

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Re: Practice exams for the current syllabus
« Reply #32 on: June 07, 2009, 12:02:58 pm »
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Quote from: maine on June 07, 2009, 11:30:07 am
The TSFX one has me close to tears

yeah, same here
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Gloamglozer

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Re: Practice exams for the current syllabus
« Reply #33 on: June 07, 2009, 12:12:22 pm »
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Quote from: Mao on June 07, 2009, 12:01:54 pm
Quote from: maine on June 07, 2009, 11:30:07 am
The TSFX one has me close to tears
TSFX is notorious for being retarded

Ditto.  I felt like the most retarded Chem student that ever walked this planet when I did their exams for the first time.
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monokekie

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Re: Practice exams for the current syllabus
« Reply #34 on: June 07, 2009, 12:22:10 pm »
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+1
Quote from: Gloamglozer on June 07, 2009, 12:12:22 pm
Quote from: Mao on June 07, 2009, 12:01:54 pm
Quote from: maine on June 07, 2009, 11:30:07 am
The TSFX one has me close to tears
TSFX is notorious for being retarded

Ditto.  I felt like the most retarded Chem student that ever walked this planet when I did their exams for the first time.
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methodsboy

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Re: Practice exams for the current syllabus
« Reply #35 on: June 07, 2009, 01:43:38 pm »
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^damn right ppl
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kenny17

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Re: Practice exams for the current syllabus
« Reply #36 on: June 07, 2009, 05:23:19 pm »
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agree ; :'(
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kenny17

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Re: Practice exams for the current syllabus
« Reply #37 on: June 07, 2009, 05:28:25 pm »
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can someone pls explain to me, how to do the last question (9 c) on the tsfx 2009
exam in english! they have the most retarded working out.
im fine with the K+ bit. just the ppm bit is confusing.
is that bit of the answers correct?

thanx
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d0minicz

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Re: Practice exams for the current syllabus
« Reply #38 on: June 07, 2009, 06:04:09 pm »
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ppm = g/10^6 g
soo basically they got the mass of K+ ions and thats in 25L
25L = 25,000 mL
1mL = 1g
soo thats the mass of K+ ions in 25,000 g
since ppm is 10^6 g
how many times does 25,000 go into 10^6 g
thats 40

soo u times the mass of K+ ions by 40
to get the mass per 10^6 g
which is ppm
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arthurk

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Re: Practice exams for the current syllabus
« Reply #39 on: June 07, 2009, 07:07:53 pm »
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umm in regards to C iii question 1 for the tsfx paper
maybe im tired and cant think or something but doesnt the use of the phenolphthalein indicator result in an underestimation as the colour would change too early
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arthurk

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Re: Practice exams for the current syllabus
« Reply #40 on: June 07, 2009, 07:11:49 pm »
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and i got 123% for cii however i looked at the answer it said 126
but then i put their last line of calculation in calculator and i get my answer
whats up with that?
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mystikal

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Re: Practice exams for the current syllabus
« Reply #41 on: June 07, 2009, 07:25:44 pm »
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is the standards of tsfx chemistry papers like way higher of VCAA exams ? if it is then i dont feel as depressed lols, after i did that exam i didnt feel like doing another one lols
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arthurk

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Re: Practice exams for the current syllabus
« Reply #42 on: June 07, 2009, 07:31:00 pm »
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can someone please help me with what i said above?^.^
looking in your direction Mao and Truetears:P
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chem-nerd

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Re: Practice exams for the current syllabus
« Reply #43 on: June 07, 2009, 07:44:21 pm »
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it's just your typical TSFX error
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arthurk

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Re: Practice exams for the current syllabus
« Reply #44 on: June 07, 2009, 07:51:51 pm »
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lol but why so many
and for the combustion of biodiesel how come the molecular formula for the biodiesel contradicts with the formula of that was produced in the question before that unless what we are 'combusting' is the fatty acid
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