EXPERIMENT GUIDES
Pick one. Book a bench. Run it.
Full protocols with apparatus lists, step-by-step technique, safety notes, and the results you should expect — so you know when you've nailed it.
5 of 19 experiments
Titration: ethanoic acid vs sodium hydroxide
The classic weak acid–strong base titration. Standardise 0.1 M ethanoic acid against 0.1 M NaOH using phenolphthalein, and see why the endpoint lands above pH 7.
Flame tests: identifying metal ions
Dip, flame, identify. Use the colours metal ions give a Bunsen flame to identify unknown salts — the same physics that puts colour in fireworks.
Double-indicator titration: phosphoric acid against sodium hydroxide
Phosphoric acid holds three protons and gives up the first two at clearly separate points. Put two indicators in one flask and catch both end-points in a single run — red to orange, then yellow to green.
Qualitative analysis: identifying the ions in two unknown solids
Two labelled solids, a rack of reagents and no answers. Work through the standard test series, record what you actually see, and name the ions from the evidence.
Thermal decomposition: water of crystallisation in hydrated zinc sulfate
Heat hydrated zinc sulfate, FA 4 (ZnSO₄·yH₂O), in a crucible until its mass stops changing, then use the mass of water driven off to calculate y — the number of water molecules per formula unit.