Run hard@thehsc
Well-Known Member
- Joined
- Oct 7, 2021
- Messages
- 784
- Gender
- Male
- HSC
- 2022
- Its time for the sciences
Tollens testalso, how would you test for ketones and aldehydes? I have come across contradicting sources, so it would be amazing if someone can confirm this!
Just oxidise it again with dichromate, if changes to green then aldehyde present (oxidising to carboxylic acid) and if stays orange then ketonealso, how would you test for ketones and aldehydes? I have come across contradicting sources, so it would be amazing if someone can confirm this!
makes sense - this is defs in the syllabus so will use this. Thanks!Just oxidise it again with dichromate, if changes to green then aldehyde present (oxidising to carboxylic acid) and if stays orange then ketone
yeah especially those weird ppm high mark questions that were in some of the 2022 trialsWould love an 8 marker on titrations or esterification
In saying that, I hate mod 8, so please, none of that
how was the bio exam for you btw?I hope they do what they did with bio and focus more on mod 5/6 lol
omg you literally predicted itWould love an 8 marker on titrations or esterification
In saying that, I hate mod 8, so please, none of that
I have never heard someone spit such faxthat test was kinda doomed, all of the calculations after question 30, i basically invented new chemistry
when nesa finishes their essay on how esterification is extremely dangerous, globally catastrophic because esters are volatile, but the one true kryptonite of this is Fischers process of acid refluxWhen will solutions be released?
for real, using a heating mantle is the only way to save humanity from open flamesI think NESA forgot to include the flashpoint dangers of ethanol, can't have kids combusting while doing the experiment
ok but when will the paper be released?When will solutions be released?
seeing that the difficulty was about the same as last year, im predicting that it should be around the low 80s of 80-82What do we think the band 6 cut off will be this year?