Yomi BlackMost candidates who fail Chemistry at this level did the work. They did it on the topics they already understood, and in a format that is marked by examiners against a published mark scheme, with method marks awarded for working and presentation marks for layout that produces nothing.
- Subject
- Chemistry
- Examined by
- WAEC
- Format here
- A written examination with an objective paper, an essay paper, and a practical or alternative to practical where the subject has one
- Depth
- Senior secondary depth, three years of teaching examined in one diet
- What the grade does
- A credit, and credits are the unit almost every admission requirement is written in
- Hardest part
- The mole concept sits underneath most of the calculation marks, and a candidate who has not internalised it loses across the whole paper rather than in one topic.
- Most common loss
- Reporting titration values to the wrong number of decimal places.
What you are actually being measured on
The papers are a written examination with an objective paper, an essay paper, and a practical or alternative to practical where the subject has one, and they are marked by examiners against a published mark scheme, with method marks awarded for working and presentation marks for layout. The grade sits on a certificate that does not expire and that you will show for the rest of your working life.
The preparation that fits it: three years of school teaching, which means your gaps are your school’s gaps, and finding them is the first job.
Cover the ground, worst first
- Separation of mixtures and purification.
- Atomic structure and bonding.
- The periodic table and periodicity.
- Stoichiometry and the mole concept.
- States of matter and gas laws.
- Energetics, rates and equilibrium.
- Acids, bases and salts.
- Oxidation and reduction, electrolysis.
- Organic chemistry.
- Metals, non-metals and their compounds.
How to weight your time
Objective, essay, and a practical or alternative to practical.
Split your preparation in roughly that proportion, then adjust towards whichever component your diagnostic exposed.
Do the stoichiometry until it is automatic. Every other calculation topic in the subject stands on it.
A six-week plan
- Week one. A full past paper under time, in this examination’s format. Mark it honestly. Tag every error.
- Week two. The topics your teaching never covered. Highest return per hour.
- Week three. Drill the three losses above until they stop happening.
- Week four. A second full paper. Compare the error pattern with week one.
- Week five. Your weakest component, whether that is the practical, the essay or the objective paper.
- Week six. A third paper, then consolidation. No new material.
What the grade buys you
Here the grade is a credit, and credits are the unit almost every admission requirement is written in. Chemistry is required for medicine, pharmacy, chemical engineering, biochemistry, agriculture, nursing and the physical sciences, and it is checked individually at admission. One diet a year for school candidates, so there is no second attempt inside the same admission cycle.
Chemistry: common questions
What makes it hard?
The mole concept sits underneath most of the calculation marks, and a candidate who has not internalised it loses across the whole paper rather than in one topic.
What is the most common way candidates lose marks?
Reporting titration values to the wrong number of decimal places.
Where do I get the official syllabus?
From WAEC, on its own site, free. Check the year range on the cover before you use it.
How long do I need?
Six focused weeks will move a grade if the work is aimed at what your diagnostic paper exposed. Six months aimed at topics you already know will not.
Should I get a tutor for this subject?
If your problem is that the topic was never taught, yes, and specifically for those topics. If your problem is presentation or pacing, a tutor helps less than timed practice against the mark scheme.
Is Chemistry compulsory?
No. It is a science subject, chosen as one of your electives, and you should choose it because a course you want names it.
What is it required for?
Medicine, pharmacy, chemical engineering, biochemistry, agriculture, nursing and the physical sciences.
How many papers are there?
Objective, essay, and a practical or alternative to practical.
What makes the subject hard
The mole concept sits underneath most of the calculation marks, and a candidate who has not internalised it loses across the whole paper rather than in one topic.
That changes the plan. A subject that punishes presentation needs practice in presentation. A subject that compounds needs its foundations fixed first. More hours on the wrong layer produce the same result as none.
The three losses to eliminate first
- Reporting titration values to the wrong number of decimal places.
- Balancing equations carelessly, which cascades through every calculation that follows.
- Ignoring the concordant-titres convention in the practical and averaging everything.
Each is worth more than an extra topic learned, because they are losses on material you already know. Fixing a habit converts work you have already done into marks you are currently not getting.
- WAEC Chemistry: syllabus
- WAEC Chemistry: past questions
- All WAEC subjects
- WAEC syllabus, all subjects
- WAEC grading and what counts as a credit
Sources
- The West African Examinations Council, Nigeria. Entry regulations for WASSCE. waecnigeria.org
- The West African Examinations Council, Nigeria. Registration and entry. waecnigeria.org
- The West African Examinations Council, Nigeria. Frequently Asked Questions. www.waecnigeria.org