Post Utme Unn 2019 Biology Question 40
Practice objective / multiple choice question 40 from the 2019 Post Utme Unn Biology examination.
A 20.0 g sample of a compound containing only carbon and oxygen is heated in a crucible. The mass of the residue is 4.0 g. What is the empirical formula of the compound?
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About This Question
This is Post Utme Unn 2019 Biology Question 40. It is one of the objective questions from the 2019 Post Utme Unn Biology examination.
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