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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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
Transcribed Image Text:A generic solid, X, has a molar mass of 58.9 g/mol. In a constant-pressure calorimeter, 30.9 g of X is dissolved in 259 g of water
at 23.00 °C.
X(s) ·
X(aq)
The temperature of the resulting solution rises to 26.10 °C. Assume the solution has the same specific heat as water, 4.184
J/(g.°C), and that there is negligible heat loss to the surroundings.
How much heat was absorbed by the solution?
q =
kJ
What is the enthalpy of the reaction?
AH rxn
kJ/mol
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