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 a objective / multiple choice question from the 2021 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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