2025 WAEC ENGLISH: FREE 2025 WAEC CHEMISTRY PRACTICAL ANSWERS (8187)
2022 WAEC GCE 2nd SERIES RUNS
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2025 WAEC CHEMISTRY PRACTICAL ANSWERS Password/Pin/Code: 8187.
Monday 6th May, 2019
Chemistry 3 (Practical) (Alternative A) 09:30 a.m. 11:30 a.m. (1st Set)
Welcome to official 2025 English WAEC answer page. We provide 2025 English WAEC Questions and Answers on Essay, Theory, OBJ midnight before the exam, this is verified & correct WAEC Eng Expo. WAEC English Questions and Answers 2025. WAEC Eng Expo for Theory & Objective (OBJ) PDF: verified & correct expo Solved Solutions, FREE 2025 WAEC CHEMISTRY PRACTICAL ANSWERS. 2025 WAEC EXAM English Questions and Answers
Pls Use Your School End Point
VERY IMPORTANT MESSAGE:
Please make sure you use your school end point in that number 1. In my answer, you will see that i used 12.50cm3. Make sure you use what your school used. So try edit my 12.50cm3 and put yours, then recalculate. Meaning that you should replace my 12.50cm3 with your school's end point anywhere you see it on my work. Some school got 12.90cm3, 13.00cm3, some even got 18.50cm3, etc
MORE EXPLANATION:
You should use ur school average titre value in number 1a bcos each school have their general titre value for their students which should differ a little with their fellow classmates due to errors encountered during titration in the lab. So when you see 12.50cm3, you should check the range ur school got during the titration in the lab, ur chemistry teacher must have taught how to input ur values and he/she must have given you an average titre value. So, use it to edit our solution. Some school got 13.00cm3, 12.90cm3, 15.50cm3, etc. You should edit and recalculate the Number 1bii by editing our 12.50 there with ur school value. But if ur school, got ranges like 12.30cm3-12.70cm3, then u can use my 12.50cm3. Its difference is always +- 0.2... Just take note. This is applicable in number 1a and 1bii.
Thanks
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Welcome to official 2025 English WAEC answer page. We provide 2025 English WAEC Questions and Answers on Essay, Theory, OBJ midnight before the exam, this is verified & correct WAEC Eng Expo
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DRAW A TABLE WITH THE FOLLOWING
Burette reading|ROUGH|1st |2nd |3rd
Final |13.60|15.50|14.80|12.50
Initial |1.00 |3.10 |2.40 |0.00
Vol. acid used |12.60|12.60|12.40|12.50
Volume of S2O3
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