Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 10 - Problems: 10.87

Answer

-583 kJ/mol

Work Step by Step

Compute moles of N2H2: 6.50 g / 30.0298 g/mol = 0.21645 mol Determine enthalpy per mol: 126.2 kJ / 0.21645 mol = 583 kJ/mol (to three sig figs) Since the reaction is exothermic, the final answer is: -583 kJ/mol
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