heartworthy Posted January 28, 2009 Report Share Posted January 28, 2009 I'm taking my mid-term today in Chemistry. My teacher is AWFUL and hasn't taught us much. She gives us tests then we raise our hand and she'll look over it to tell us which questions we answered wrong...Seriously. It's great for me, but I've been doing no work (cause oh yeah there's no homework either). Basically our exam used old IB questions--the stuff we haven't been taught. So, we're all going to do poorly Reply Link to post Share on other sites More sharing options...
Abu Posted January 28, 2009 Report Share Posted January 28, 2009 Your question is? Reply Link to post Share on other sites More sharing options...
heartworthy Posted January 28, 2009 Author Report Share Posted January 28, 2009 (edited) Oh sorry! Haha I got so caught up in talking about the class I forgot to ask it I was going to ask about how many formulas should we memorize for our IB exam? Especially the ones to show alkalinity and acidity? Our teacher said something about knowing those for period 3. Edited January 28, 2009 by heartworrthy Reply Link to post Share on other sites More sharing options...
moneyfaery Posted January 28, 2009 Report Share Posted January 28, 2009 (edited) Oh sorry! Haha I got so caught up in talking about the class I forgot to ask it I was going to ask about how many formulas should we memorize for our IB exam? Especially the ones to show alkalinity and acidity? Our teacher said something about knowing those for period 3.You meanpH = -log[H+]pOH = -log[OH-]pH + pOH = pKW = 14Ka x Kb = KW = 10-14?They're not exactly hard to "memorize", so yes, know them. I can't think of any other acids and bases formulae.... Edited January 28, 2009 by Irene Reply Link to post Share on other sites More sharing options...
heartworthy Posted January 28, 2009 Author Report Share Posted January 28, 2009 I took the test today and they weren't even on there! *sigh* thanks anyway! Reply Link to post Share on other sites More sharing options...
biochem Posted January 29, 2009 Report Share Posted January 29, 2009 you should have many things to look over for the exam. We have a memory sheet which keeps on accumulating, in our binder which we add stuff to. Like, top 10 most common reactions and their products, of course the polyatomic ions, some easy things to memorize which make you more efficient on the test. So go back and review from the beginning, things which u dont see on the data booklet. Like the reactivity series. Reply Link to post Share on other sites More sharing options...
Hedron123 Posted January 29, 2009 Report Share Posted January 29, 2009 I strongly recommend you to buy the Chemistry Study Guide by Geoffrey Neuss, it's really good (either this or the Oxford Course Companion). You can learn the topics by yourself by reading that book. I hope you can overcome your problem! Reply Link to post Share on other sites More sharing options...
moneyfaery Posted January 29, 2009 Report Share Posted January 29, 2009 you should have many things to look over for the exam. We have a memory sheet which keeps on accumulating, in our binder which we add stuff to. Like, top 10 most common reactions and their products, of course the polyatomic ions, some easy things to memorize which make you more efficient on the test. So go back and review from the beginning, things which u dont see on the data booklet. Like the reactivity series.The reactivity series is in the data booklet though (kinda) in the form of Standard Electrode Potential or something. (Table 14 maybe?) Reply Link to post Share on other sites More sharing options...
__inthemaking Posted January 29, 2009 Report Share Posted January 29, 2009 On the actual IB exam, you'll get a data booklet with some formulas. Check to see which ones aren't on there and memorize those. Reply Link to post Share on other sites More sharing options...
heartworthy Posted January 30, 2009 Author Report Share Posted January 30, 2009 Yeah I just took the test and I forgot the formulas for the period three oxides, like Na2O + H2O -> 2NaOH and SO3 + H2O -> H2SO4 Reply Link to post Share on other sites More sharing options...
IBdoc Posted January 30, 2009 Report Share Posted January 30, 2009 Yes, all formulas are in the data booklet. Sometimes our teacher writes down the formulas needed on the test since IB allows us to have the formulas in front of us. You can propose that to her. Reply Link to post Share on other sites More sharing options...
ragnarpk Posted February 3, 2009 Report Share Posted February 3, 2009 sounds like my chem class... which is why i'm getting a tutor Reply Link to post Share on other sites More sharing options...
heartworthy Posted February 4, 2009 Author Report Share Posted February 4, 2009 sounds like my chem class... which is why i'm getting a tutor It's very frustrating! I thought I did a lot better on the exam than I actually did :/ She gives us flashcards to study, but doesn't make us learn them...it's so pointless. I've been trying to motivate myself to learn on my own, but it's hard. Reply Link to post Share on other sites More sharing options...
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