Chemistry Predictions/Thoughts (1 Viewer)

[synthesisFR]

plan for tmrw:
- 2022 hsc chem paper
- memorise my notes and mark the past papers ive done
- review some topics i bad at and call it a day

 

[rockydo4u]

plan for tmrw:
- 2022 hsc chem paper
- memorise my notes and mark the past papers ive done
- review some topics i bad at and call it a day

Same but focus on Bos papers and module 8 synthesis and NMR, pick out the tough questions from James ruse 2023 and peak mini trials binge watch atomi

 

[rockydo4u]

I think this year they would give a tough buffer question

 

[yepImhere]

I gave up for today lmao, having a break from this subject

 

[rockydo4u]

I gave up for today lmao, having a break from this subject

how many past papers have u done?

 

[yepImhere]

how many past papers have u done?

not enough , I'm just gonna try and do as many questions as I can so I can hopefully remember how to do them

 

[SadCeliac]

2

Oops

 

[SadCeliac]

Proton environments exist wherever there are protons present in the molecule, no matter what they're attached to. @carrotsss is right, there will be 2 peaks on the H-NMR spectrum for methanol.

Cheers cheers makes sense

 

[carrotsss]

just did 2020 hsc
bruh that exam was soo sooooo eazzzzz idk why ppl saying its hard
i messed up on the stupid titration thing tho i drew a curve instead of two lines so ill probably lose like 3 marks there rippp but everything else was aboslutely ezzz

yeah just did it and that was literally easier than 2021 idk what people are waffling about

 

[krispykangaroo469]

can you use a highlighter/blue pen in the hsc for chem? not to write in your answers but just to mark the questions

 

[carrotsss]

can you use a highlighter/blue pen in the hsc for chem? not to write in your answers but just to mark the questions

yes

 

[Xyzpt]

Could someone please explain how they would solve this question?
I don't understand the solutions.

Thanks!

 

[Unovan]

Could someone please explain how they would solve this question?
I don't understand the solutions.

Thanks!

ph = 14-poh

poh = -log10[oh]

so you find [oh] and that doesn't change and then you calc the rest

should be able to go from tehre

 

[TK123]

Does anyone have a good precipitation reaction table that states whether compounds are soluble/insoluble and what colour they are because I just realised the one I've memorised is partially wrong.

 

[Xyzpt]

ph = 14-poh

poh = -log10[oh]

so you find [oh] and that doesn't change and then you calc the rest

should be able to go from tehre

Thanks

 

[Unovan]

Thanks

Its weirdly worded my chem teacher (who's an overqualified beast) got that one wrong just by overcomplicating it all it means is that pH is constant at 7.5 lmao

 

[Xyzpt]

Does anyone have a good precipitation reaction table that states whether compounds are soluble/insoluble and what colour they are because I just realised the one I've memorised is partially wrong.

 

[synthesisFR]

Could someone please explain how they would solve this question?
I don't understand the solutions.

Thanks!

its ok i also dont know how to do that question i got 2/4 for it

 

[SadCeliac]

just did 2020 hsc
bruh that exam was soo sooooo eazzzzz idk why ppl saying its hard
i messed up on the stupid titration thing tho i drew a curve instead of two lines so ill probably lose like 3 marks there rippp but everything else was aboslutely ezzz

What did you get

 

[Xyzpt]

its ok i also dont know how to do that question i got 2/4 for it