Waec Model Questions Vol1 2019 Chemistry Question 32
Practice objective / multiple choice question 32 from the 2019 Waec Model Questions Vol1 Chemistry examination.
Acetic acid (CH₃COOH) and propanoic acid (C₂H₅COOH) are each reacted with excess ethanol under identical conditions. After 30 min the amounts of ethyl acetate and ethyl propionate formed are 0.045 mol and 0.030 mol respectively. The initial moles of acetic acid and propanoic acid were 0.060 mol and 0.050 mol. Assuming the reactions follow a second‑order rate law with respect to the acid concentration (rate = k[acid]²) and that ethanol concentration remains constant, calculate the ratio of the rate constants k_acetic / k_propanoic.
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About This Question
This is Waec Model Questions Vol1 2019 Chemistry Question 32. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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