Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 3 - Sections 3.1-3.12 - Exercises - Conceptual Problems - Page 136: 156a

Answer

Oxygen

Work Step by Step

Oxygen will have the largest mass percentage because with a 1:1 ratio of oxygen to carbon, oxygen has a higher molar mass at 16g/mol compared to carbon at 12g/mol.
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