THE LIBRARY
Every experiment. Read it, or run it.
Full protocols with apparatus lists, safety notes, and the results you should expect — plus a live simulator on the same page, so reading and doing are one trip, not two.
SubjectChemistry
SyllabusA-Level
5 of 19 experiments
Chemistry~60 min
Titration: ethanoic acid vs sodium hydroxide
Open the tap drop by drop, chase the pink endpoint, and calculate the concentration.
IGCSEA-LevelCBC
Chemistry~55 min
Double-indicator titration: phosphoric acid against sodium hydroxide
Catch both end-points of a triprotic acid in one run — red to orange, yellow to green.
IGCSEA-Level
Chemistry~75 min
Redox titration: ethanedioic acid vs potassium manganate(VII)
Heat, then titrate a self-indicating redox reaction to a permanent pale pink — no indicator needed.
A-Level
Chemistry~45 min
Thermal decomposition: water of crystallisation in hydrated zinc sulfate
Heat a hydrated salt to constant mass and calculate its water of crystallisation.
A-LevelIGCSE
Chemistry~55 min
Qualitative analysis: a mislabelled salt and three manganese oxidation states
Catch a mislabelled bottle with your own tests, then compare manganese across three oxidation states.
A-Level