HSC Chemistry SOLUTIONS / Thoughts / Predictions (2 Viewers)

Luke322

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im pretty sure when they got number of moles they multiplied that by avagadros constant (6.022*10^23). i have no idea why they used that constant tho :(
OHHH its cause thats how many molecules of the substance there is in one mole so they're finding the number of monomer molecules in the 0.001735mol which gives the answer
 

hscisbotshit

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OHHH its cause thats how many molecules of the substance there is in one mole so they're finding the number of monomer molecules in the 0.001735mol which gives the answer
OOOOOHHHHHHHHHHHHH that makes sense now thank uuuu so much
 

Luke322

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best of luck for chem lads we've got this don't worry. Our great and generous overlords at NESA will make the exam easy because they love us.
 
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omg I slacked so hard during my break and now im doomed :oops::oops::oops: hopefully my internal rank can save me lmao
 

CM_Tutor

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I think it should.
View attachment 29461

The central hydrogen will see 5 neighboring hydrogens in unique environments. N + 1 rule will produce 6 peaks.
Actually, the 'red' H will be split into a quartet by the 3 'blue' H atoms and into a triplet by the 2 'green' hydrogens, so the 'red' H will have a signal that consists of a quartet of triplets and thus of 12 lines. However, it is likely that some will overlap and so the result is likely to be a multiplet.
 

NoUsername

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Wait...everyone got a ph of 7.0 for that solution equilibrium question right? :oops: I think I stuffed that question up, but I'm confident with majority of the rest.
 

NN03

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Wait...everyone got a ph of 7.0 for that solution equilibrium question right? :oops: I think I stuffed that question up, but I'm confident with majority of the rest.
What max. temp did you get for the last question?
 

NoUsername

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What max. temp did you get for the last question?
I can't remember exactly, off the top of my head there was an increase of 50 somthing degrees, so the maximum was 70 something.
 

jazz519

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What were the longer response questions you received?
 

MrGresh

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It was so different to what I've seen before. A lot of the questions seemed very hard at first but turned out to be easier with some problem solving and thought.

But definitely harder than 2019 by a SIGNIFICANT margin
 

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