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    May 2019
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  1. Hi, I received my diploma in July. Now I'm applying for 2020 entry (Queens & uToronto). OUAC's guidance page says that they only accept it in hard copy and will forward to the universities. Should I request the IBO to send my results to OUAC or to separate universities? Anyone who's done this before or knows how to do it, I'd really appreciate your help. Thanks!
  2. Thanks for the advice! My textbook does not teach anything about the Henderson-Hasselbalch equation, but it does mention that pKa=PH at equivalence point. But doing this would be too simple an IA, so I'm looking for alternative approaches to determine the pKa...
  3. I don't think it's stealing. Academic honesty in IA is about not having same/similar topics with your classmates. Your friend obviously can't do an IA about that anyway. Besides, her exploration will be much more in-depth than yours.
  4. I can also go from pH to pKa right? That's how I can determine the pKa of the acid. But how do I find the concentration of its conjugate base through a titration? Would the conjugate base need to be extracted and titrated separately?
  5. Please please please can someone help???
  6. Hi, I'll have to decide on our ia topics by tomorrow! I came up with 2 potential ia topics but can't decide which one to do: Does my city fit the multi-nuclei model? What factors affect the sphere of influence of the local supermarket/store? With the 1st one I'll need to find certain features in the, say 5-6, potential commercial centers in my city, and use the definitions to prove that they are indeed CBDs, and then piece them together. There're a few classmates with similar topics and we're supposed to go in groups, but still it might be pretty tough fieldwork?
  7. I saw a sentence in my textbook saying acid strength CANNOT be distinguished with indicators, but I think it can and that's where I got the idea from. How can I distinguish between acids of similar pKa then?
  8. Thanks. but actually I was thinking about chemistry...e.g. distinguish between weak and strong acids through titration using indicators.
  9. You said another suitable form of exploration is to compare different methods. Do I have to come up with a better method than the regular one taught in the text book? Is it okay if this new method is actually less efficient?
  10. Thank you very much! This is helpful with both my biology and chemistry IAs! One thing though, my biology teacher said he had a student who got a high score with simulations in genetics.
  11. My teacher told me the biology ia has to involve the variables. i.e. the investigation must be about the effect of sth on sth. That doesn't sound right to me. Isn't it supposed to be an exploration related to ANYTHING we've covered in the course? I want to do an identification of lactobacilli in yogurt by DNA profiling. Is it possible that my teacher is mistaken? What about other restrictions on the choice of topic? DNA profiling tech is unavailable in my school lab. Is it ok to use more advanced equipment in outside labs? Or would it be considered beyond our level or even academically d
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