A guide to the eight practical topics that must be included in the SBA: separation techniques; acids, bases and salts; redox reactions and electrolysis; qualitative analysis; volumetric analysis; rates of reaction; energetics; and saturated and unsaturated hydrocarbons.
5 narrated scenes. Press play, listen and read along — the points appear as they are explained. Use ‹ Prev / Next › or the scene bar to jump to any scene.
Every one of these eight topics can appear in Paper 02, Paper 032 and your SBA. Master the method once and you earn marks three times.
Narration uses your device’s built-in voice. No sound? Switch to “Captions only” — the captions advance on their own.
Copy these into your notebook in your own words — that is how they stick.
Separation techniques; acids, bases and salts; redox and electrolysis; qualitative analysis; volumetric analysis; rates of reaction; energetics; saturated and unsaturated hydrocarbons.
Sixteen practicals over two years; each skill assessed at least three times.
Rf = distance moved by spot ÷ distance moved by solvent.
Concordant within 0.10 cm³; mean titre; n = C × V.
Gradient of volume–time graph = rate.
Q = mcΔT; ΔH = Q ÷ n.
Bromine water or acidified KMnO₄ test; not burning.
Complete, dated and corrected; available for moderation.
3 quick games on this lesson. Earn XP and badges as you play — your best score for each game is saved. Games are for practice and do not change your exam readiness. More games in the Chemistry Arcade.
8 items modelled on real CSEC Paper 1 questions. Choose one answer for each, then check. Aim for 80% or better. Work each item on paper first.
Write full answers, then reveal the mark scheme and tick the points you earned (17 marks in total). Show all your working — method marks count. Your answers are saved on this device.
Question 1 [17 marks]
Use your knowledge of the eight required practical topics.
(a) (a) State the eight required practical topics. [4]
(b) (b) For paper chromatography, state how Rf is calculated and one precaution. [3]
(c) (c) For a titration, state when results are concordant and how the mean titre is found. [3]
(d) (d) State two ways of changing the rate of reaction and the measurement used in a rate experiment. [3]
(e) (e) State two precautions for an energetics experiment using a polystyrene cup. [2]
(f) (f) State two things that must be in a good practical workbook. [2]
Everything in this lesson is based on these parts of the CXC syllabus and papers.