Hello Harprit, Part of the "Hands on" practicals on electrolytic cells gets students to carry out the electrolysis...
R3.2 (AHL) Electrochemical cellsHello. I have a question regarding the electrolysis of bromide and iodide solutions. I typically train my students to think about aqueous electrolysis as involing reduction and oxidation of water rather than reduction of hydrogen ions and oxidation...
R3.2 (AHL) Electrochemical cellsExcellent work. Chemistry is difficult. The Australian Chemistry papers are much worse.
The subject report and errors in the exam papersHi Geoffrey, Thank you for your guidance.
Internal AssessmentHello Briony, Yes, reaction rates are normally given as a positive value but it depends exactly what they are referring to. Since S is the product the rate of formation of S is positive as [S] is increasing. Since P and Q are reactants...
MC test: R2.2 Rate of reaction & collision theoryHi folks, for Question 8, my understanding is that we always report rate with a positive value, even if the rate is decreasing over time - so C would be an acceptable answer too?? If you could clarify this point that would be appreciated.
MC test: R2.2 Rate of reaction & collision theoryHello Sechem, Yes. See the page on using secondary data.
Internal AssessmentDear Geoffrey, I am doing IB DP since last year but in my current school, they have storage of equipments. Is it possible to use stimulation practicals for IA's ?
Internal AssessmentHello David,Sorry, but there is only the version that is available on the site. They are deliberately not made available in.doc or .pdf format due to the very reason you state.
MC test: S3.1 Periodic table (1) - classification of elements
Harprit
Thanks Geoff. I'm still a bit unclear on what the expectations from the IB really are here. If there's a halogen solution in a question (that isn't the only specifically mentioned example of NaCl), do I just assume that it's essentially a concentrated...
R3.2 (AHL) Electrochemical cells