faith Posted November 13, 2010 Report Share Posted November 13, 2010 I'm starting a thread again! How did everyone find the papers? I found paper 1 quite hard- the indicator question got me rather confused. Paper 2 I thought was average. I made something random up for the mass spectrometer question and the bromine water question. Reply Link to post Share on other sites More sharing options...
Jennifer Posted November 13, 2010 Report Share Posted November 13, 2010 I found paper 1 quite manageable, though there were a few questions I was a bit unsure about. Paper 2 was strange - they didn't give the usual big stoichiometry question at the start, but I also found it okay. Not great, but not too bad. I wasn't sure about the 'hypothesis' regarding the electrochemical series (one of the later parts of the first question I think). What did you put down? Reply Link to post Share on other sites More sharing options...
faith Posted November 13, 2010 Author Report Share Posted November 13, 2010 I think the hypothesis is something along the line of: the lower the standard electrode potential, the lower the enthalpy change. The graph I drew was a linear graph. I'm not 100% sure about this but a few other friends put similar things down. Reply Link to post Share on other sites More sharing options...
Jennifer Posted November 13, 2010 Report Share Posted November 13, 2010 Hmm I drew something different. I said that if the standard electrode potential was greater than 0.34 (which is the standard electrode potential of copper), then the reaction wouldn't be spontaneous so the enthalpy change would be 0. And if it was less than 0.34, the enthalpy change would get bigger the bigger the difference between the electrode potential of copper and the electrode potential of the metal (I think in terms of this we had the same thing). Reply Link to post Share on other sites More sharing options...
Drake Glau Posted November 13, 2010 Report Share Posted November 13, 2010 Ooo bromine water, checking for organic molecules I don't know what the question was but I've only ever used Bromine water to distinguish whether or not a sample has a certain functional group in it (I think its the C double bonded, which I've forgetten the name of unfortunately). Reply Link to post Share on other sites More sharing options...
zzzkzzz Posted November 13, 2010 Report Share Posted November 13, 2010 I did Chem SL but we also had the enthalpy question, the mass spectrometer question and the bromine-ethene question.All of the other SL kids at my school were confused about that electrode hypothesis because in SL we never studied the electrode potentials. For section B I did a question containing hydrazine and I know a similar hydrazine was in the HL paper as well.It seemed that there was a lot in common between the SL and HL papers, and it was worrying because the HL people said they found them hard and so what were we supposed to do as SLs... oh well .. paper 3 was good. Reply Link to post Share on other sites More sharing options...
faith Posted November 13, 2010 Author Report Share Posted November 13, 2010 Bromine water is used to test for ethene functional groups.=) The question was rather obscure though. Something along the lines of draw the structure of an isomer of xx molecule, which contains a c=c bond, that does not decolourise bromine water. @ zzzkzzz: There are a lot of overlaps between HL and SL. We just have more content and have to do an extra question in section B. Reply Link to post Share on other sites More sharing options...
Stereoisomer Posted November 18, 2010 Report Share Posted November 18, 2010 lol i think i was in a different time zone but i don't remember a question on bromine water..Maybe it's coz it happened so long ago. Reply Link to post Share on other sites More sharing options...
Mats Posted March 18, 2011 Report Share Posted March 18, 2011 Goin' to bump this thread.I am planning on buying a copy of the 2010 november exams from the IBO website (for practice and all), but I was wondering whether or not the 2010 november exams had other versions of the same exam - TZ0, TZ1, TZ2, etc - for people living in different timezones. Reply Link to post Share on other sites More sharing options...
Mahuta ♥ Posted March 18, 2011 Report Share Posted March 18, 2011 November papers normally only have one timezone TZ0. May papers have TZ1 and TZ2. Reply Link to post Share on other sites More sharing options...
Alex1307 Posted March 23, 2011 Report Share Posted March 23, 2011 Bromine water is used to test for ethene functional groups.=) The question was rather obscure though. Something along the lines of draw the structure of an isomer of xx molecule, which contains a c=c bond, that does not decolourise bromine water. You had to find the structure of an alkane (C-C single bonds) that has the molecular formula C4H8. I was really confused but I figured out 5 minutes before the end that I had to draw cyclobutane: 4 carbons, 8 hydrogens and no double bond! Reply Link to post Share on other sites More sharing options...
Altamira Posted March 23, 2011 Report Share Posted March 23, 2011 Does anyone remember any paper 2 long answer (section B) questions from the November 2010 HL exam?i have my mocks tmrw and it'd be really great if anyone could help! Reply Link to post Share on other sites More sharing options...
Alex1307 Posted March 23, 2011 Report Share Posted March 23, 2011 Does anyone remember any paper 2 long answer (section B) questions from the November 2010 HL exam?i have my mocks tmrw and it'd be really great if anyone could help!The first one was about magnesium... I didn't take it so I don't quite remember. There was something about the Born-Haber cycle (energetics HL). The second one was a mix of organic chemistry (nucleophilic substitution and free radical substitution)and kinetics (rate of reaction calculation). There was also a little bit of stoichiometry (deducing the empirical formula of a compound) The third one was a mix of equilibrium (Kc calculation and application of Le Chatelier principle)and acid/base(weak acid pH calculation, weak acid/strong base titration and difference between weak and strong acid).No idea about the last one, I didn't even look at it. Hope this help!I found the November paper quite easy. I hope may 2011 will be as easy as this one! *finger crossed* Reply Link to post Share on other sites More sharing options...
Guest IBkidd Posted April 30, 2011 Report Share Posted April 30, 2011 we had mock (ish) chemistry papers in hl papers 1 and 2, and people were mostly struggilingin the multiple choice questions, because it was so factually based, so that you could only be right if you knew that precise fact exactly. And guessing is always bad....What I found was, whenever we had such questions, I was like : Yes, I know this answer. One mark - kaccchinng! . So i was like, yeah the answer is definitely "M". The only problem was, that "M" was NOT given in the options so my advice to you is, that whatever topic you read, try reading around and learn those small little extra details in your textbook! Because, it is not really the general information you need to know in the IB, because the phrasing of the questions and can be confusing and might put you off at first.but dont let it. Reply Link to post Share on other sites More sharing options...
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