Neco 2020 Chemistry Question 49
Practice objective / multiple choice question 49 from the 2020 Neco Chemistry examination.
5.00 g of 1‑propanol (CH₃CH₂CH₂OH, M = 60.10 g mol\(^{-1}\)) is oxidised with Jones reagent. The oxidation proceeds in two steps: (i) 1‑propanol → propanal with an 80 % isolated yield, and (ii) propanal → propanoic acid with a 70 % yield based on the amount of propanal formed. (i) Calculate the mass of propanoic acid obtained. (ii) Determine the overall percent yield of propanoic acid relative to the theoretical maximum mass obtainable from 5.00 g of 1‑propanol (assuming 100 % conversion in both steps).
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About This Question
This is Neco 2020 Chemistry Question 49. It is one of the objective questions from the 2020 Neco Chemistry examination.
Difficulty level: Medium .
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