Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 3 - Chemical Reactions and Reaction Stoichiometry - Exercises: 3.68a

Answer

18.75 moles O2

Work Step by Step

Looking at the coefficients, we need 2 moles of C8H18 for every 25 moles of O2. Therefore, if we need to burn 1.5 moles C8H18 then: 1.50 moles C8H18 * (25 moles O2/2 moles C8H18) = 18.75 moles O2
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