Do you have a PDF or downloadable version of all the mock exams?
HL Practice Paper 1 (Section A) (1)Yes agree. Thank you for your response.
MC test: R1.2 Energy cycles in reactionsHello IffatYou are quite correct that calculations involving the standard enthalpy of formation ΔHf⦵ are only required for HL students on the syllabus as this appears in AHL R1.2.3. However the SL/HL statement R1.1.4...
MC test: R1.2 Energy cycles in reactionsIs the standard Enthalpy of formation a part of the SL syllabus?
MC test: R1.2 Energy cycles in reactionsHi Geoffrey, Thanks for giving a detailed response. One more thing is functional group isomerisation whre carboxylic acid and esters are isomers of each other hence the ester's nomenclature is equally important to learn for students.
MC test: S3.2 Functional groups - classification of organic compoundsHello Lyydia,Different countries and even different areas within the same country have different arrangements for the disposal of small amounts of hazardous chemical waste. Your school may have to arrange disposal of its own waste or your education...
Iodination of propanoneHello! I would like to ask about the iodopropanone waste disposal. It probably doesn't make sense to deliver such a dilute aqueous solution to a waste station, because it's really expensive anyway. Can the solution be concentrated somehow, or...
Iodination of propanoneHi Austin, The IB Teacher Support Material (page 77) states that according to common protocol when the final percentage uncertainty is greater than or equal to 2% the result should be given to one significant figure, so you are correct.
Experimental work Question 7In part (f), the final percentage uncertainty is larger than 2 %, so it should be given to one significant figure. So, 0.092±0.002?
Experimental work Question 7
Geoffrey
Site authorHi Angie,Your students are already signed up to Student Access so they can easily access all the practice multiple choice exams together with the answers and the explanations as to why A, B, C or D is the best answer for each question together...
HL Practice Paper 1 (Section A) (1)