WAEC Chemistry 2019 Objective — Question 13
Question 13 of 50 from the West African Examinations Council (WAEC) Chemistry 2019 Objective paper, with the correct answer and a full explanation.
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What is the percentage by mass of hydrogen in CH3COOH? [CH3COOH = 60]
- A. 1.7%
- B. 5.0%
- C. 6.7%Correct
- D. 7.1%
Explanation
%H = (1×4/60) × 100% = 6.6667% ≈ 6.7% (there are 4 hydrogen atoms in CH3COOH).
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