Waec Model Questions Vol1 2024 Chemistry Question 15
Practice objective / multiple choice question 15 from the 2024 Waec Model Questions Vol1 Chemistry examination.
A 10.0 g sample of ethylene glycol (C₂H₆O₂) is mixed with 12.0 g of acetic anhydride (C₄H₆O₃) and heated with a few drops of concentrated H₂SO₄. The reaction proceeds as follows: \[\text{HO-CH₂-CH₂-OH} + (\text{CH₃CO})₂\text{O} \rightarrow \text{CH₃COO-CH₂-CH₂-OH} + \text{CH₃COOH}.\] Determine the limiting reagent, the theoretical mass of mono‑acetylated ethylene glycol that can be formed, and the percent yield if 9.0 g of the product is actually obtained.
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About This Question
This is Waec Model Questions Vol1 2024 Chemistry Question 15. It is one of the objective questions from the 2024 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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