Chemistry: The Central Science (13th Edition)

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

Chapter 5 - Thermochemistry - Exercises - Page 207: 5.58a


$C_6H_5OH(s) + 7O_2(g) --> 6CO_2(g) + 3H_2O(l)$

Work Step by Step

1. Write the unbalanced equation: * Since it is a combustion, the phenol will react with oxygen, and produce CO2 and water. $C_6H_5OH (s) + O_2 (g) --> CO_2(g) + H_2O(l)$ 2. In a combustion, you start balancing the number o Carbon atoms: $C_6H_5OH + O_2 --> 6CO_2 + H_2O$ 3. Now, fix the number of Hydrogen atoms: $C_6H_5OH + O_2 --> 6CO_2 + 3H_2O$ 4. Finally, balance the number of oxygen atoms: $C_6H_5OH + 7O_2 --> 6CO_2 + 3H_2O$
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