Answer
$T=4.81\ ^{\circ} C$
Work Step by Step
From the conservation of energy principle:
$500.\ mL\times 1\ g/mL\times 4.184\ J/g.K \times (20.0-T)\ K=[333\ J/g+4.184\ J/g.K\times (T-0.0)]\times 2\times45\ g$
$T=4.81\ ^{\circ} C$
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 5 Principles of Chemical Reactivity: Energy and Chemical Reactions - Study Questions - Page 217e: 79
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