Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 5 Principles of Chemical Reactivity: Energy and Chemical Reactions - Study Questions: 56

Answer

See answer below.

Work Step by Step

a) From the standard states: $Mg(s)+1/2\ O_2(g)\rightarrow MgO(s)$ Enthalpy of formation: $-601.24\ kJ/mol$ b) Enthalpy: $-601.24\ kJ/mol\times 2.5\ mol = -1503.1\ kJ/mol$
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