Waec Model Questions Vol1 2021 Chemistry Question 2
Practice objective / multiple choice question 2 from the 2021 Waec Model Questions Vol1 Chemistry examination.
A 8.00 g sample of an unknown compound containing only C, H, O and N is combusted completely in excess O₂. The combustion yields 13.2 g of CO₂ and 5.4 g of H₂O. It is known that the original sample contained 20 % (by mass) nitrogen. Determine the empirical formula of the organic portion (i.e., the part containing only C, H and O).
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About This Question
This is Waec Model Questions Vol1 2021 Chemistry Question 2. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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