Waec Model Questions Vol1 2021 Chemistry Question 4
Practice practical question 4 from the 2021 Waec Model Questions Vol1 Chemistry examination. This question covers Mole Concept, Acid‑Base Titration .
A student wishes to determine the molar mass of an unknown monoprotic acid (HX) by standardisation against a sodium hydroxide solution. Procedure: 1. Accurately weigh 0.300 g of the solid acid and dissolve it in distilled water. 2. Add a few drops of phenolphthalein indicator. 3. Titrate the solution with 0.1000 M NaOH until a faint pink colour persists for 30 s. 4. The titration is repeated three times and the average volume of NaOH required to reach the endpoint is 24.60 mL. Answer the following questions:
Question Parts
Detailed Solution & Marking Scheme
Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.
Reveal AnswerAbout This Question
This is Waec Model Questions Vol1 2021 Chemistry Question 4. It is one of the practical questions from the 2021 Waec Model Questions Vol1 Chemistry examination.
The question covers Mole Concept, Acid‑Base Titration .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.