Hello Lyydia,Most people use a probe these days. I haven't used my lab method for many years now and seem to have lost the precise details, but searching online a method similar to the one I used can be found
R3.2 Oxidation & reductionHello! I think you used to have the instructions for the lab practical to determine the amount of dissolved oxygen using the Winkler method. If possible, could you please share the paper here. Thank you in advance!
R3.2 Oxidation & reductionYes, Laura it should be oxygen dichloride. It was actually corrected on the HL Paper some while ago but somehow it got missed on the SL paper. It is corrected now. Thank you for pointing it out.
SL Practice Paper 2 (3)For 6 b, shouldn't it be Oxygen dichloride (Cl2O) or it could also be Dichloride monoxide, but the name and the formula do not match
SL Practice Paper 2 (3)Hi Austin,Maybe Quantitative chemical analysis by Daniel C.Harris? It is a useful advanced reference book to have available for EEs in Chemistry and possibly IAs. You can easily find it online, e.g. on
Experimental programme & IAI remember I read somewhere on this site about a recommended book for experimental and analytical techniques that school's should consider investing in, but I can't remember where. Do you have any idea which book it was?
Experimental programme & IAThank you for your detailed reply. I especially enjoy part 2 of this lab.
Enthalpy changesThank you, Geoff for your reply. The slides explain the concept well, thanks for this. I will use them in class. Best regards, Mini.
R2.2 (AHL) Rate expression & reaction mechanismHello Mini,As it says in the guide under R2.2.6, Higher Level students should be able to evaluate proposed mechanisms including examples where the rate-determining step is not the first step. You ask if students are required to identify...
R2.2 (AHL) Rate expression & reaction mechanism
Lyydia
OK, thank you!
R3.2 Oxidation & reduction