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  1. S

    Neap papers?

    ive got a neap bio exam with solutions
  2. S

    Do we need to mention states for Equations?

    i'm afraid you're incorrect. HCl is an acid that is more commonly found as a gas than an aqueous solution. HCl (g) + H20 (l) --> ......
  3. S

    Mature age: Prelim info/skills needed for HSC course - Help appreciated!

    You need to know: -energy graphs, ie: exothermic and endothermic ones. -metal reactions with acid, water, and oxygen -galvanic cells (electrochemistry) -pollution (crude oil etc) -distillation -all the common glassware (eg burette, volumetric flask etc) and HOW they're used -ionic and...
  4. S

    Antony and Cleopatra - I am perplexed :S

    I understand. How many scenes should I focus on for each text? Am I allowed to "jump" from scene to scene when explaining HOW the power/powerplay is being represented? eg: if i talk about 6 types of powerplays am I allowed to use 6 short scenes from my prescribed text, and then 3 for each...
  5. S

    Trial paper questions - AAS

    were you asking me a question? because maybe that's where the confusion lies, and i may have misinterpreted it lol could you sort of explain 5) a bit please? i dont know how it will let me find the "approx. conc. of the iron, before standard soln of iron maybe prepared."
  6. S

    Three Key ISSUES in BNW

    this is how i am going to structure my essay, (if anyone can comment if it is a wise idea): 1. intro 2. Power and Control - context in both societies 3. Comparative study 4. Science and technology - context in both societies 5. Comparative study 6. Nature/environment - context in...
  7. S

    Antony and Cleopatra - I am perplexed :S

    I've constructed an essay on this text and 2 others, but I don't know whether to focus more on "representation" or the actual "powerplay - who wins/loses power", or if I should balance the two out. My teacher told me to just focus on representation (language, techniques, etc) but that makes...
  8. S

    accuracy in sulfate % fertiliser prac

    i have a few steps to analyse; i need to find out how these particular steps increases accuaracy. I've tried, but it's difficult. step 1) weight out 1.0g of fertiliser onto a piece of weighing paper and then transfer to a 250ml beaker. add 25ml of de-ionised water to dissolve. to this solution...
  9. S

    Trial paper questions - AAS

    1) But the the question says "in 0.1M HCL" solution lol 2) the results for the water from the dam are quite low. water from a tank showing rusting would contain considerable levels of iron because the tank was constructed from iron material and if it undergoes rusting then iron ions...
  10. S

    chem question - answer them if u think ur smart;

    Could you just explain your working out here? Can I use the C1V1=C2V2 formula in this situation?
  11. S

    Trial paper questions - AAS

    Trial paper questions - AAS Hey just few questions I couldn't do, if you could lend a hand. It's to do with AAS. 1. The first question asks why standard solutions (iron ion standards in an AAS) were prepared in 0.1mol/L HCL solution. 2. Also, what would be a valid reason/hypothesis for...
  12. S

    chem question - answer them if u think ur smart;

    Wouldn't you agree that the question is terribly worded? Or possibly that I have terribly misinterpreted it... shouldn't the equation be: HgO + O2 --> Hg + O2 It says "heating HgO" to obtain "Hg and O2"...but logically it makes no sense...
  13. S

    chem question - answer them if u think ur smart;

    1. Identify the ions present in an aqueous LiOH solution. Li+, OH- 2. How many moles of oxygen are there in 10.46g SO2 ? MM (total)= 64 32:32 so, m(O2) = 5.23g n=m/MM so, n(O2) = 5.23g/16g/mol = .326875mol O2 3. What is the percent by mass of nitrogen N2O3 ? MM(total) = 76...
  14. S

    what school are you at?

    Mmmmm I suppose I shall agree with you there in some areas of sport, we do have flaws :) . Though you must remember we are more academically focused overall :P But still, everybody loses, and everybody wins.
  15. S

    galvanic cells

    Structure: The Gratzel cell consists of: The complete networks consist of TiO2, ZnO, Ta2O5, and Nb2O5 particles, which contain pores where a liquid conductor (redox electrolyte) can flow through. It consists of two sheets of conducting glass (electrodes), one which is a dye-absorbed...
  16. S

    Is the pressure kicking in yet?

    Consistency is the Key.
  17. S

    Summer Holiday Study

    No. I believe I am not, and I have no reason whatsoever for an intention to be. Although one may insist that I am his twin :)
  18. S

    working too hard

    5 hours study a night from 4pm onwards isn't that bad. Solid mind set is what you all need.
  19. S

    what school are you at?

    James Ruse Agricultural High
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