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Here are some raw external marks, Chemistry Total Mark: 86/100 Total Weighted Mark: 86 Exam: 95 Rank: 25/10325 English Adv Total Mark: 90.17/105 Total Weighted Mark: 95 Exam: 96.2 Rank: 120/27127 Mathematics Ext 1 Total mark: 74/84 Total Weighted Mark: 74 Exam: 96.6 Rank...

Hi peeps just an interesting thought Post your school certificate and hsc marks for comparison skool certificate eng 94 maths 99 science 98 geography 96 history 91 computer 92 hsc eng 96 (woot!) maths ext 1 98 maths ext 2 95 chem 96 phy 94 pretty close i guess :spin:

lots of hugs and praise yay

I can't find the old thread so can someone help out?

Prediction: > 97 :D Would be interesting if someone can predict their actual ATAR!

i can't understand this question and answer provided??? (2007 Ind) Consider the silver oxide button cell when 90% of the silver oxide has reacted. Predict the effect on the cell voltage, giving reason for your answer. The cell voltage will remain close to 1.59V. This is because all reactants...

when viewing hydrogen u see four spectral lines with a spectroscope (red, green, blue and violet) as electrons move from n = 6 to n = 2, n = 5 to n = 2 etc .... what i don't get is how does one electron produce these four lines? :confused:

What would be the perfect 2010 HSC Belonging question for u? And your guess whether it will be two/one (possibly more than 2?) related text this year? :wave:

how do you answer this? Borate ions assist in buffering seawater at a pH of about 8 in the following equilibrium H<SUB>3</SUB>BO<SUB>3</SUB> + H<SUB>2</SUB>O < -> H<SUB>2</SUB>BO<SUB>3</SUB><SUP>−</SUP> + H<SUB>3</SUB>O<SUP>+</SUP> <SUP></SUP> <SUP>Which of the two species above are...

i find this module the most broadest and certainly vague past trial questions range from a specific question like deception or loyalty or role of women how have critical receptions changed over time how important is context to Hamlet choose a specific scene and write about how your...

how do you differentiate cos<SUP>-1 2</SUP>√x i.e. inverse cos of 2 root x cheers

Graaahhh this was in the 2009 HSC chem, can anyone plz explain to me how to do this!? :angry::cry: The nitrogen content of bread was determined using the following procedure: A sample of bread weighing 2.80 g was analysed. The nitrogen in the sample was converted into ammonia. The...

Aqueous solutions of SO*2 and HCL were prepared and the pH of each solution measured. Solution of SO*2 Volume of gas at 25 degrees and 100kPa 2.48 L Volume of solution 1 L PH 1.43 Solution of HCl Volume of gas at 25 degrees and 100kPa 0.49 Volume of solution 2 L pH 2.00 Q: calculate...

The heat of combustion for ethanol is 1367 Kj/mol. Calculate the energy produced per tonne of carbon dixiode from the combustion of ethanol. The pH of a 0.1 mol/L solution of a monoprotic acid was measured by a student and found to be close to 3. What proportion of the acid molecules remains...

I can't seem to get the answer of pH 1.48 200mL of 0.1 mol/L NaOH is added to 100mL of 0.15 mol/L H*2SO*4. Assuming complete ionisation of the acid, the rseulting pH of thes olution is? cheers to the person who can explain this with equations! :angel:

How the heck do you solve this? A polynomial Q(x) = x^4 + px^3 + qx^2 - 5x + 1 has a zero at x = 1. When Q(X) is divided by x^2 + 2 it has a remainder of 1 - 7x. Find p and q. :) if u solve it

What experiment could you carry out in the laboratory to determine the solubility of copper II sulfate in grams per 100 mL of water using room temperature, 50 c and 80 c ?

how do you integrate by substitution the following q? x√(1-x) dx ? i get conflicting answers from fitzpatrick and cambridge! (in terms of positive and negative signs) thnx:jump:

Felt like doing volunteer work for holidays :o Has anyone done a particular volunteer job that was worth it? What was it? How'd you get it? Cheers

I have this stupid Q to do for physics Q: Would a massive planet have a higher or lower gravitation potential energy compared to Earth? My reasoning was: it depends because wouldn't a massive planet with a mass of 2m and a radius of 2r still have the same GPE value compared to earth with a...