2023 WAEC Chemistry Specimens ( May/June ).

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2023 WAEC chemistry specimens. 2023/2024 Waec Chemistry practical specimens. Waec 2023 May/June Chemistry Specimens.


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WAEC 2023 CHEMISTRY PRACTICAL SPECIMEN

APPARATUS AND MATERIALS REQUIRED:

(a) One burette of 50cm³ capacity

(b) One pipette either 20cm³ or 25cm³(All candidates at one centre must use pipette of the same volume.These should be clean and free from grease)

(c) The usual apparatus for titration

(d) The usual apparatus and reagents for qualitative work including the following with all reagents appropriate labelled;
(i) 10% dilute sodium hydroxide solution
(ii) dilute hydrochloric acid
(iii) dilute trioxonitrate (v) acid
(iv) silver trioxonitrate (v) solution
(v) acidified potassium dichromate solution
(vi) aqueous ammonia
(vii) lime water
(viii) red and blue litmus paper
(ix) dilute tetraoxosulphate (vi)
(x) aqueous barium chloride

(e) Spatula

(f) Filtration apparatus

(g) One beaker

(h) One boiling tube

(i) Four test tubes

(j) Starch solution indicator

(k) Glass rod

(l) Wash bottle containing distilled/deionized water

(m) Burning splint

(n) Watch glass

(o) Bunsen burner/source of heat

(p) Droppers

* Each candidate should be supplied with the following, where n is the candidates serial number.

(a) 150cm³ of iodine in a corked flask or bottle labelled ‘An‘. These should all be the same containing 25.4g of l2 in 6.0kl per dm³ of solution.

(b) 150cm³ of solution thiosulphate pebtahydrate solution in a corked flask or bottle labelled ‘Bn‘. These should all be the same containing 24.82g of Na2S2O3 per dm³ of solution.

(c) One spatulaful of ammonia ferrous sulphate, (NH4)2 Fe(SO4)2 . 6H2O in a specimen bottle labelled ‘Cn‘.
This must be the same for all candidates.



Related Posts:

=> 2023 WAEC Physics Specimens.

=> 2023 WAEC Biology Specimens.


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9 Comments

  1. Please I need physics practical waec questions and answers

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