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  1. Jumbo Cactuar

    Chem Questions

    ........ and? Think quantitatively not qualitatively! First line: [HCl] = m / ( M * V)
  2. Jumbo Cactuar

    Chem Questions

    Don't mock my question! The question is 'what is saturated HCl' ?
  3. Jumbo Cactuar

    Chem Questions

    ^^ Alkanoic tends to be stronger acid since double bonded O draws electron density from OH, affecting a weaker OH bond. Ahahh I have another question! Much easier this time! At standard conditions HCl has a maximum solubility of 70g per 100g of water. Assuming that this dissolution...
  4. Jumbo Cactuar

    The Offical Tennis thread

    Urgh Grosjean!! Sooo tired!! 6-3 2-6 1-6 6-3 3-0 ... Down with Roddick ... zzz ... zzz PS: Sharapova is ... well I think people know what I am going to say! Give me AK anyday :p EDIT: NOOO!! Roddick won :(
  5. Jumbo Cactuar

    Chem Questions

    2HCl + Ba(OH)2 -----> BaCl2 + 2H20 nBa(OH)2 = C*V = 0.2*0.02 = 0.004 mol nHCl = 2 * 0.004 = 0.008 = C*V C = 25M V = 0.008/25 = 0.00032L = 0.32mL I wonder what the error on that titration is. @xiao1985: I was after concentration is related to amount of light absorbed...
  6. Jumbo Cactuar

    Return of the Chemistry Game before trials!

    Single Bond : A covalent bond formed by the sharing of two electrons between two nuclei.
  7. Jumbo Cactuar

    Chem Questions

    Question two is sooo amazingly basic! The other questions have been answered.
  8. Jumbo Cactuar

    Return of the Chemistry Game before trials!

    I can see the letter N is fast going to become a nuisance!
  9. Jumbo Cactuar

    Dot point help

    I can't see how that would help here! :o
  10. Jumbo Cactuar

    Dot point help

    AAS ~ Of course, though that is already listed! To the first question ... yes. C Titration as competition for ligands instead of AB Titration which is competition for ions. Long live Eriochrome Black T!!
  11. Jumbo Cactuar

    Return of the Chemistry Game before trials!

    Salt : A substance held together by electrostatic interactions of positively and negatively charged ions (ionic bonding). Salts are typically solid at standard state, though liquid salts exist (ex. 1-butyl-3-methylimidazolium tetrafluoroborate). Typically high boiling points and poor strength in...
  12. Jumbo Cactuar

    Chem Questions

    @ xiao1985 & thunderdax ~ yes you are both correct! It is selective because other species are all atomised/ionised and energy is quantised so there is a very low probability of interference (since there is a limited number of elements). The lamp is constructed from the analyte to ensure the...
  13. Jumbo Cactuar

    Dot point help

    I have also used; complexometric titration UV-vis spectroscopy
  14. Jumbo Cactuar

    What's the last game you played?

    Metal Gear Solid 1 ~ Damn it's hard. SNAKE?!! SSNNNNAAKKKKKKEEEE!!!!!!!
  15. Jumbo Cactuar

    Return of the Chemistry Game before trials!

    Non-polar solvent : A medium which dissolves solutes by the interaction of dispersion forces only. Non-polar solvents prefer non-polar solutes. Examples include benzene and tetrachloromethane (carbon tetrachloride).
  16. Jumbo Cactuar

    Chem Questions

    Emma-Jayde 1 - correct 4 - on the right track - thats how it is methodically different. :D nice start!
  17. Jumbo Cactuar

    The Offical Tennis thread

    Watch it on shottracker online then! Of course it is biased! You don't win ratings by disheartening viewers ... and it is fair to say that most people wanted Hewitt to win. After all it was two Australian tennis greats calling the match!
  18. Jumbo Cactuar

    The Offical Tennis thread

    And even if she was on Home & Away, would it then be newsworthy? Someone please beat Sharapova and Roddick!!
  19. Jumbo Cactuar

    Chem Questions

    Oh and a question! 9.4.3! And challenging this time! AAS is an amazingly easy test with great selectivity. - what is AAS used for? - what is the fundamental relation of quantitative spectroscopy? - account for the selectivity of AAS. - how does AAS chemically differ from a flame test...
  20. Jumbo Cactuar

    Chem Questions

    Hmmm, that answer is pretty retarded! Carbon dioxide has a solubility of 1.8g/L in water. Carbon dioxide is leached out of the atmosphere by rain water. Carbon dioxide is a diprotic acid (pKa1=6.35, pKa2=10.33). CO2(aq) + H2O <=> H+ + HCO3- pKa1=6.35 HCO3- <=> H+ + CO32- pKa2=10.33
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