all depends on your rank
if it was an impossible exam and everyone failed but youre rank 1 and it doesnt represent hsc difficulty then no - but then again how likely would it be for everyone to fail
for discursive i think it would be beneficial to read several examples
also something my teacher recommends is to keep like a short journal, write random ideas you have in it. if you watch a film, write your thoughts on it so that overtime you have ideas to talk about not only in discursive but...
i mostly studied for my accelerated subject - 2u math but for the others:
i went ahead for chem which i also got tutored for, i finished all my chem notes for mod 1 which became pretty useful in the prelims. in the term i dont like updating my notes i like spamming questions so this helped me...
can someone pls check if this is right:
3.78 x 10^-5 mol/L is the diluted
3.78 x 10^-4 mol/L is the undiluted
Then since there's 50mL, 3.78 x 10^-4 x (50 x 10^-3) moles
=0.0000189 moles
0.0000189 mol x 500.158 g/mol = 0.0094529 g
So, 0.0094529/5
= 0.189%