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LOL, if this is trialled in NSW then rather than 135cm to 121cm, we won't even be able to get much of a measurement :D

This is a pdf file of a simple list of trig formulae you should probably know off by heart It appears to me that many people don't have a good idea what trig formulae they need so I made a simple list - it should be in most maths books - for the benefit of those who have never seen such a...

don't always believe the books, believe yourself if you have good reason too :D even the best books have mistakes

regarding this prac, you will just need to know the method, the reaction/equation, and under what conditions fermentation can take place. There is no point knowing exact figures - ah, and also the other things for pracs in general: risk assessment, validity, reliability, etc.

my misunderstanding :p good luck for hsc, practise writing mini essays LOL

phenol: you are right that Ag3N is the main substance responsible for explosion, since Ag is stable metal, Ag+ would have the tendency to go elemental, and formation of N2 would release a lotta energy, and since this occurs really fast -> explosion, so entropy wise, this is favoured. AgN3 +...

Explosiveness doesn't really have anything to do with redox :D Tollen's reagent may cause explosions coz of the precipitation of fulminating silver, which is a black powder that could explode violently in the liquid in which it is formed. So when you see a dark ppt forming from ammoniacal...

yeah! hehe, u know what's going on here :p haha, benedict's solution is used more often than fehling's, coz it's safer to handle. As for Tollen... hehe, yeah, his reagent, silver mirror test... but like fehling's, this reagent must be made right before it's used, if you leave it for too...

Fehling is the German dude who came up with Fehling's reagent (very similar to Benedict's Solution) used for reducing aldehydes. This reagent is frequently used for medicinal purposes. For example, when you go test for diabetes, you get a sample of urine, and use of Fehling's reagent would tell...

Fehling's reagent (mainly light blue Cu(OH)2) reacts with reducing sugars under heating, to from brick red Cu2O precipitates. If heated using hot waterbath, Cu2O ppt would be large and brick red, if heated directly using bunsen, Cu2O would be smaller and yellow. R-CHO + 2Cu 2+ + 5OH - ->...

a must know for linguists :D ... sounds like adv maths gonna be a troop of maths wizards :p one of the IMO team member also doing it (minus the engineering part) i assume more applied maths, right? to assist with your commerce degree :p ... who also happen to be dedicated chemists :D

I think the highest raw mark for Ext II maths was 109 and congratulations keypadSDM :)

Arg z is principle argument, from - pi to pi arg z is the 2kpi one, ie. anticlockwise from 0, going round and round and round. arg z = Argz + 2kpi

precisely, if you intend to do something science or medicine related, should look further than the stuff hsc syllabus offers - another 2 units of english in disguise. Otherwise... well, refer to spice girl's post :D

It depends on what you are applying for. PhB may be offered based on criteria other than UAI, in which case you get your offer around december.

Who's planning on doing Science/Advanced Science in 2004 as part of their degree? (single/combined/double) I am :p B Sc (Advanced)

perhaps she's referring not to chem chem, but hsc chem :rolleyes: I also think sci/arts would perhaps be the best option, or arts/sci... :p slightly different

:) yes it takes a lot of time, but it's more enjoyable than HSC

Or calculate the entropy change as a certain amount of ice melt (with relevant data) given :p => Physical Chemistry Or name a ligand like [Ni(CO)4], explain paramagnetism and diamagnetism,etc. => Inorganic Chemistry Or understandin ghe mechanims involved in eg. halohydrogenation =>...

For olympiads, you actually have to know your stuff well :p ie. 1st yr + hardcore science, not like the soft core, english-like science syllabus we have now in NSW. It is not general knowledge, it is specialised knowledge, you have to have an interest in that subject you are doing, and read...