Post Utme Achievers University 2020 Chemistry Question 34
Practice objective / multiple choice question 34 from the 2020 Post Utme Achievers University Chemistry examination.
A sample of air contains 21.0% O2 by volume. If 2.50 L of air is collected, how many moles of O2 are present?
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About This Question
This is Post Utme Achievers University 2020 Chemistry Question 34. It is one of the objective questions from the 2020 Post Utme Achievers University Chemistry examination.
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