A scientist measures the standard enthalpy change for the following reaction to be -56.0 kJ: Ca(OH)2(aq) + 2 HCI(aq)CaCl2(s) + 2 H,O(1) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O(1) is

A scientist measures the standard enthalpy change for the following reaction to be -56.0 kJ: Ca(OH)2(aq) + 2 HCI(aq)CaCl2(s) + 2 H,O(1) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O(1) is

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter7: Chemical Energy

Section: Chapter Questions

Problem 76E: Write reactions for which the enthalpy change will be a. Hf for solid aluminum oxide. b. the...

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Question

A scientist measures the standard enthalpy change for the following reaction to be -56.0 kJ:
Ca(OH)2(aq) + 2 HCI(aq)CaCl2(s) + 2 H2O1)
Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2(1) is
kJ/mol.
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