Jump to content

IB-Adam

Members
  • Content Count

    132
  • Joined

  • Last visited

  • Days Won

    1

IB-Adam last won the day on May 18 2013

IB-Adam had the most liked content!

Community Reputation

29 Renowned

1 Follower

Profile Information

  • Gender
    Male
  • Exams
    May 2013
  • Country
    Holy See Vatican City

Recent Profile Visitors

8,263 profile views
  1. IB-Adam

    May 2013 Official Grade Boundaries

    Oooh, could you give me the boundaries for English Lit/Lang SL, for a 6 atleast? Also, bad luck man, I can imagine how you feel :/ Maybe a remark? For a 5: 54% For a 6: 67%
  2. IB-Adam

    May 2013 Official Grade Boundaries

    I am a man of no luck at all. One mark away in both EE and TOK...
  3. IB-Adam

    Which one is a better book (Oxford or Cambridge)?

    The exams tend to be harder now. Haese & Harris was probably a very good book in 2009 though. Always use two books when it comes to maths!
  4. IB-Adam

    Ban the person above you

    Banned because of your 7 in studies.
  5. I wasted a lot of time thinking that the base length of the rectangles were a instead of 1. Wrote a lot of "see other booklet" so I am probably going to piss off the examiner
  6. You had to realise that it was an alternating series and to some error analysis. I found that the sum of the first 4 terms would give me the sum correct to 3 sig. Didn't get the telescoping series... The last question with the upper, and lower bounds were actually really easy although it got stressed in the end. Grade boundaries are going to be high this year. 50/60 for a 7.
  7. IB-Adam

    Chemistry TZ2 HL Paper 3

    Did Analytical and Drugs. Good combination, and very useful in real life Expecting a 7.
  8. IB-Adam

    Chemistry HL Paper 1 and 2 TZ2

    The thing is, this isn't even in the syllabus. Let's bomb the IB in Cardiff!!!! What isn't in the syllabus ? The systematic error thing is (objective 11.1.1 describe and give examples of random uncertainties and systematic errors). And for the Mn thing, who knows, i guess it is just data analysis... But I'll join the bombing anyways I meant the percipitate which was formed. I simply guessed that MnO was formed. Haha, perfect!
  9. IB-Adam

    Chemistry HL Paper 1 and 2 TZ2

    The thing is, this isn't even in the syllabus. Let's bomb the IB in Cardiff!!!!
  10. IB-Adam

    Chemistry HL Paper 1 and 2 TZ2

    I got 50 kJ/mol I think. Your method is correct so either I or you will only lose one mark out of three. I hope you'll get your 6
  11. IB-Adam

    Chemistry HL Paper 1 and 2 TZ2

    Perhaps it is D, and that they wanted us to recognize that C only worked for a second order reaction. From a mathematical perspective, I think that the question was unfair.
  12. IB-Adam

    Chemistry HL Paper 1 and 2 TZ2

    For the first order reaction question, which graph was it? C or D? D was the concentration-time graph which didn't seem to reach 0 at all, whereas C clearly approached 0.
  13. IB-Adam

    Chemistry HL Paper 1 and 2 TZ2

    In other words, they were asking for the strongest lattice. --> MgCl2 Mg had the highest positive charge whereas Cl was the most electronegative --> Really strong bond.
  14. IB-Adam

    Chemistry HL Paper 1 and 2 TZ2

    For the Kc equilibrium, I have seen similar problems before. The trick is to notice that you are able to take the square root of the expression without even having to use your calculator. Why? If you got it right, your Kc = (A)^2 / (B)^2 = (A/B)^2 You can easily take the square root of this!
  15. IB-Adam

    Chemistry HL Paper 1 and 2 TZ2

    I took B since it involved no proton exchange (Bronsted Low.. theory), and because I directly saw that another complex ion was produced in B. Complex ions are formed by ligands sharing their electron pairs to the central ion --> Lewis Base theory..
×

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.