2024 WAEC CHEMISTRY: 2025 WAEC Chemistry (Chems) Practical Alt B Verified Answers (1427)
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TEACHER'S REPORT FORM
(2)
(a) 5.0
(b) 3.5
(3)
(i) 21.00
(ii) 20.80
(iii) 20.90
Average: 20.90
Welcome to official 2024 Chemistry WAEC answer page. We provide 2024 Chemistry WAEC Questions and Answers on Essay, Theory, OBJ midnight before the exam, this is verified & correct WAEC Chems Expo. WAEC Chemistry Questions and Answers 2024. WAEC Chems Expo for Theory & Objective (OBJ) PDF: verified & correct expo Solved Solutions, 2025 WAEC Chemistry (Chems) Practical Alt B Verified Answers. 2024 WAEC EXAM Chemistry Questions and Answers
This is 2025 WAEC Chemistry (Chems) Practical Alt B Verified Answers No. 1
This is 2025 WAEC Chemistry (Chems) Practical Alt B Verified Answers No. 2
(3a)
(PICK ANY THREE)
(i) The solution of salt was acid solution
(ii) The reaction was exothermic
(iii) A gas (likely CO2) is produced during the reaction.
(iv) An insoluble substance, which precipitates out of the solution is produced
(v) The salt maybe that of a weak acid or contain a metal ion such as calcium, barium, or lead.
(3b)
(i) PbSO4
(ii) NaHCO3
(iii) NH4Cl, NaHCO3 and Cu(NO3)2
(iv) NaHCO3
(v) NH4Cl
(3c)
(Choose any 3)
(i) Ensure all glassware, such as burettes, pipettes, and flasks, are clean and free from any contaminants.
(ii) Calibrate the burette and pipette before use to ensure accurate measurements.
(iii) Carefully measure the volume of acid and sodium hydroxide solutions to be used in the titration.
(iv) Continuously stir the solution in the flask during the titration to ensure thorough mixing of the reactants.
(v) Perform the titration in good lighting conditions to accurately identify the subtle color change at the end point
This is 2025 WAEC Chemistry (Chems) Practical Alt B Verified Answers No. 3
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