Chemistry Predictions/Thoughts (7 Viewers)

[BionicMango]

Does anyone know if we need to know complexation titrations?

Also, what about the method for titrating wine? It's not like a "must" in the syllabus right? Cause the it's crazy weird to remember.

Not to much detail.
The titration process is very much the same, they add sodium hydroxide to a sample of it and titrate it to see the concentration of acids (usually tartaric acid and sulfuric acid I think). This part of the syllabus comes under the dot point about industrial and aboriginal analysis techniques, so the wine thing is only one example and you don’t have to know that one specifically. Other examples for the industrial component could be pharmaceuticals or cleaning up acid spills (such as sulfuric acid which is used as a dehydrating agent and catalyst in the synthesis of many compounds)

 

[C2H6O]

Does anyone know if we need to know complexation titrations?

Also, what about the method for titrating wine? It's not like a "must" in the syllabus right? Cause the it's crazy weird to remember.

bro don’t even get me started on redox titrations
and precipitation titrations
ik I should know these but do I really guys (I don’t know them)

 

[coolcat6778]

do we seriously have to memorise all this garbage

 

[coolcat6778]

How about NESA be fucking transparent in their syllabus and just say "Recall (bla bla bla)". Just admit it's all memorisation, nesards

 

[C2H6O]

How about NESA be fucking transparent in their syllabus and just say "Recall (bla bla bla)". Just admit it's all memorisation, nesards

I do agree the syllabus is so annoyingly vague with each dot point secretly having 50 separate pieces of information you need to memorise, and that 1 sentence is supposed to cover it all and tell us exactly what we could be asked in hsc

 

[lazystudentzzz]

bro don’t even get me started on redox titrations
and precipitation titrations
ik I should know these but do I really guys (I don’t know them)

can u list all the type of titrations we should probably know? my school did not teach us except basic titrations

 

[C2H6O]

can u list all the type of titrations we should probably know? my school did not teach us except basic titrations

well I don’t know the others that well either, but theres
acid base titration
back titration (titration with extra steps)
conductometric titration
redox titration (I doubt this will be assessed idk how it works myself)
precipitation titrations (specifically Mohr and Volhard’s methods)
complexation titration (never heard of this until coolcat said it just now)

 

[Luca26]

I do agree the syllabus is so annoyingly vague with each dot point secretly having 50 separate pieces of information you need to memorise, and that 1 sentence is supposed to cover it all and tell us exactly what we could be asked in hsc

The previous syllabus had all questions tied to dot points so it was way easier to memorise... being vague and just including examples allows questions set in novel contexts, so that principles need to be understood.

 

[coolcat6778]

The previous syllabus had all questions tied to dot points so it was way easier to memorise... being vague and just including examples allows questions set in novel contexts, so that principles need to be understood.

I mean, people DO memorise in order to score a band 6. It's pretty much required. Being vague just makes the syllabus even more miserable for people without good memory. There's no way you can pull out aboriginal bs examples out of your ass if you haven't memorised them. If they wanted to fix it and get rid of memorization completely, they should've just got rid of these "application" essay questions. VCE doesn't require the extent of memorization compared to HSC, as their questions are all chemistry content based rather than leaning into humanities and history.

 

[Luca26]

Applying LCP to an industrial process was all memorising when the only context that could be asked was the Haber Process. Now a question could pick (say) sulfuric acid production and LCP needs to be understood to apply it sensibly to given information in an unfamiliar context.

 

[coolcat6778]

"describe the importance of buffers in natural systems" this is the only time they mention buffer besides "conduct a practical". Does that mean there wont be any Quantitative questions related to buffers?

Oh well, funny how stupid ass trials ask stuff beyond the syllabus, including mine, to screw over their own students for no reason

 

[Geniusly]

"describe the importance of buffers in natural systems" this is the only time they mention buffer besides "conduct a practical". Does that mean there wont be any Quantitative questions related to buffers?

Oh well, funny how stupid ass trials ask stuff beyond the syllabus, including mine, to screw over their own students for no reason
View attachment 50114

Yeah my trials had a quantitative question for buffers as well, but at least it was only a multiple choice question. In theory there should be no quantitative buffer questions, but who knows what NESA will do.

 

[Trial&Error]

"describe the importance of buffers in natural systems" this is the only time they mention buffer besides "conduct a practical". Does that mean there wont be any Quantitative questions related to buffers?

Oh well, funny how stupid ass trials ask stuff beyond the syllabus, including mine, to screw over their own students for no reason
View attachment 50114

Do we all go to the same school?? cause my trials also had that and I think no one prepared for it cause we weren't even taught it. It was literally a 5 marker

 

[BionicMango]

well I don’t know the others that well either, but theres
acid base titration
back titration (titration with extra steps)
conductometric titration
redox titration (I doubt this will be assessed idk how it works myself)
precipitation titrations (specifically Mohr and Volhard’s methods)
complexation titration (never heard of this until coolcat said it just now)

Honestly you won’t need to know much about complexation and redox titrations. Precipitation reactions are good to know but again don’t come up much and are conceptually the same as acid-base titrations (just different indicators etc.). Conductometric titrations you DO need to know about, but they are probably the easiest to understand of the lot and many past papers (trials included) will have these questions so you should be familiar with them.

With science subjects the students that do best are the ones that are interested and willing to go beyond the syllabus to get their questions answered. That being said, they should never test anything beyond the syllabus and if they do then people will react.

 

[killer queen]

"describe the importance of buffers in natural systems" this is the only time they mention buffer besides "conduct a practical". Does that mean there wont be any Quantitative questions related to buffers?

Oh well, funny how stupid ass trials ask stuff beyond the syllabus, including mine, to screw over their own students for no reason
View attachment 50114

henderson-hasselback is the most cooked ahh formula I've ever had the displeasure of encountering

well I don’t know the others that well either, but theres
acid base titration
back titration (titration with extra steps)
conductometric titration
redox titration (I doubt this will be assessed idk how it works myself)
precipitation titrations (specifically Mohr and Volhard’s methods)
complexation titration (never heard of this until coolcat said it just now)

ugh I forgot about the types of precipitation titration, did you guys also do Fajan's method?
complexation I've seen like once but it didn't turn out to be that bad, I forgot where I saw it
what is redox titration