Post Utme Madonna University 2022 Chemistry Question 21
Practice objective / multiple choice question 21 from the 2022 Post Utme Madonna University Chemistry examination.
A 2.5 g sample of a non-metallic oxide is heated in a crucible until it decomposes completely. The mass of the residue is 0.5 g. If the oxide is composed of 60% oxygen by mass, what is the empirical formula of the oxide?
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This is Post Utme Madonna University 2022 Chemistry Question 21. It is one of the objective questions from the 2022 Post Utme Madonna University Chemistry examination.
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