Answer
See the answer below.
Work Step by Step
Bonds broken: 2 O-F, 2 O-H
Bonds formed: O=O, 2 H-F
$\Delta H=(2×x+2×463)-(498+2×565)=-318\ kJ/mol$
Solving for x:
$H_{O-F}= 192\ kJ/mol$
Chemistry and Chemical Reactivity (9th Edition)
by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.
Published by
Cengage Learning
ISBN 10:
1133949649
ISBN 13:
978-1-13394-964-0
Chapter 8 Bonding and Molecular Structure - Study Questions - Page 337d: 55
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