Search results

I was wondering if anyone had some insight they could give me into a comparison of science courses for USyD, UNSW and ANU - specifically Bachelor of Advanced Science/Advanced Studies (at USYD as a Dayell Scholar), Bachelor of Advanced Science/Computer science (at UNSW) and the Bachelor of...

Very sorry if this is a pretty stupid question, probably just a pre-exam freakout: In a beaker, 50 mL of 1.0 mol L−1 CH3COOH is reacted with 30 mL of 0.70 mol L−1 NaOH. (Ka of CH3COOH = 1.7 x 10−5) Calculate the pH of the final solution My confusion is how are you supposed to calculate the pH...

Firstly, epic exam to everyone involved in making it - tough multi-choice section, the free-response part required problem-solving, very good paper. I'll hold my questions for now until the solutions are posted (When would that be?), but just quickly - The last question talked about Tollen's...

2 Questions: 1) is Q22 a) correct, because I'm under the impression it should be 100j (Instead of j) in the given equation 2) How exactly do you go about showing Q23? I imagine it is insufficient to show the integral approaches 0 as n approaches infinity, therefore there will always exist an n...

1. Is there a chemical test to identify an ester (Non-spectra based)? This was one of the questions on an HSC paper, and they don't indicate any other than smelling it, so I assume not 2. The oxidation of an aldehyde to form a carboxylic acid has to be done with an acidified oxidising agent, so...

Apologies for questions, probably been answered before, just having a bit of a pre-HSC panic. 1. How come the intermolecular bonds formed with a carbonyl group on a molecule (i.e. carboxylic acid, or the non-carbonyl oxygen in the ester group) is defined as forming a dipole-dipole bond, but the...

Did anyone have any schools that they thought the trials papers for were difficult? I'm looking for Phys, Chem, 4U and 3U math (The schools I've looked at are Ruse, Baulko, NSB and Sydney Grammar) Thanks

Does anyone have any suggestions for resources available to use Fahrenheit 451 as a related text for 1984? Also, for people who did study 1984, were there any other books that were particularly useful as a related text? (Given we are studying love in 1984 rather than control/power) Thanks

Not sure how to solve the following: (1+cos(a)+isin(a))^k+(1+cos(a)-isin(a))^k = (2^k*2)*cos(ka/2)cos^k(a/2) I can get it down to proving: 1 + cos(a) + cos(2a) + .... cos(ka) = 2^k*cos(ka/2)cos^k(a/2) But don't know where to go from there. I'm almost certain you need to use: 2cos(A)cos(B) =...

247 goddams 6 - God Damn 8 - Swear to God 2 - I wish to God Ban it from the syllabus.

Cambridge Math 9E Q13 I have no idea how I am supposed to even attempt b - I tried: db/dt = (dx)/(dt)*(da)/(dx)*(db)/(da) and dx/dt = dx/da*da/db*db/dt But it gets way too ugly,

Fellow BoS users, The story I am about to tell you will sound unbelievable - many will call me liars, I will be called an idiot, my own brother didn't believe me (But like you know, brothers), but I can confirm it is true. I have omitted names for obvious reasons, but I hope my point comes...

Hi, I am in year 11, and recently we had to do a practical where we determined the type of bonds 6 UNKNOWN substances made. (Metallic bonds, ionic bonds, covalent molecular, covalent lattice). The tests were: Solubility in cyclohexane Solubility in Water Conductivity as a solid Conductivity...

Hi, Does anyone have any notes or good links to places where I can find information on the topic, "Assess the impact of Islamophobia on individual/society?" I need to write 3 paragraphs on it and I don't really know where I should go with it. Thanks!

Hello All, I have one very simple question - why is English the one compulsory subject in the HSC? I have heard many theories over the years, but no-one I know really knows the definitive answer (There probably is one). I always thought that English really was quite stupid - the only thing I...

Hi guys, I was just wondering for anyone who did continuers German whether they had some good responses that they used during the speaking assessment. A lot of the people I have talked to didn't necessarily memorize them, but had a word document with them (Just to refer to them in case) Thanks

I have my next E1 (Yr 12) exam on binomial theorem (It really is just a ton of 2u topics and also binomial theorem, real weird) Would anyone be able to give me some good questions? Just to give an example of the type of questions I am looking for, the following was a sample question on the...

Hi, Can anyone tell if they have received invitations for the olympiads yet? I know EES and Chemistry has already been released, but I am mainly looking for physics. Thanks!

Hello, Would anyone be able to help by find some english techniques within the following piece (Unbroken by Lauren Hillenbrand)? I am trying describe how the beam is shown to be very heavy in it, but other than just saying it, I don't seem to be able to find anything. Thanks! The Bird marched...

Hey Guys, This is 1A Question 24 c) of the Cambridge Math 2012 3 unit textbook: If f is a differentiable function for all real x and has an inverse function g, prove that: g'(x) = 1/f'(g(x)) Where f'(g(x)) is not 0