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: 5.69c

Answer

$Na(s) + \frac{1}{2}Br_2(l) --> NaBr(s)$ $\Delta H ^o _f (NaBr(s)) : -361.4 kJ/mol$

Work Step by Step

1. Write the unbalanced equation: $Na(s) + Br_2(l) --> NaBr(s)$ 2. Balance it: $Na(s) + \frac{1}{2}Br_2(l) --> NaBr(s)$ 3. The $\Delta H ^o _ f $ value is found in the book's final pages.
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