Post Utme Achievers University 2020 Chemistry Question 38

Practice objective / multiple choice question 38 from the 2020 Post Utme Achievers University Chemistry examination.

Post Utme Achievers University 2020 Chemistry Objective / Multiple Choice
Question 38 POST_UTME_ACHIEVERS_UNIVERSITY • 2020 • CHEMISTRY • objective

A sample of air contains 21.0% O2 by volume. If 5.00 L of air is collected, how many moles of O2 are present?

Answer Options

Correct Answer A. 0.105 mol
B. 0.210 mol
C. 0.315 mol
D. 0.420 mol
Correct Answer
A
Correct Option:
0.105 mol

About This Question

This is Post Utme Achievers University 2020 Chemistry Question 38. It is one of the objective questions from the 2020 Post Utme Achievers University Chemistry examination.

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