Hi, My student group does not work,anything I can do to get to my groups page? Thanks,
Creating student accountsGot it! Thanks.
R3.4 (AHL) Electron-pair sharing reactionsHello Mani, Hydroxide ions are much better nucleophiles than neutral water molecules due to their negative charge so “just hydroxide”.
R3.4 (AHL) Electron-pair sharing reactionsHi Geoff, This is about the hydrolysis of 2-bromo-2-methyl propane dissolved in propanone, with aqueous NaOH. Would H2O act as the nucleophile or just hydroxide?
R3.4 (AHL) Electron-pair sharing reactionsHello Xiaodan, I suggest you read the May 2025 subject report which is on My IB (May 2026 is not out yet). Under the information given for the IA it clearly says on page 11 (in all three of the TZ reports) that standard deviation is not required...
Error & uncertaintyI have a quick question about statistical analysis. One of my student decided to do Q test and standard deviation for their experiment that has only 3 trails, which is mathematically possible but not what I usually advise them to do given the low...
Error & uncertaintyHello Harprit, It is often said that it is not so much what you do but the way that you do it that is important when it comes to obtaining a high IA score. It should not be necessary for SL students to have to use additional Higher Level...
Internal AssessmentHello, I have a general question aroudn kinetics IAs. I have had a number of SL students asking to do something pretty straightforward such as how does temp/conc/surface area affect rate of a reaction. I typically steer students away from these...
Internal AssessmentHello Mark, I'm confused as they are all working well. The URL for the first one is https://www.youtube.com/watch?v=13WUqWd_Yk8...
S1.4 (3) & S1.5 Avogadro's law & ideal gases
Geoffrey
Site authorHi Fulya, You haven't really given me enough details as to why it is not working. If you follow the instructions on this page once you click on My groups all your existing groups should appear. Clicking on a particular group should take you...
Creating student accounts