Suppose a chemist discovers a new metallic element and names it "Xhaustium" (Xh). Xh exhibits chemical behaviour similar to an alkaline earth. Xh(s) + F₂(g) → XhF₂(s) Lattice energy for XhF2 -2300. kJ/mol First Ionization energy of Xh 420. kJ/mol Second Ionization energy of Xh 714 kJ/mol Electron affinity of F -327.8 kJ/mol Bond energy of F2 154 kJ/mol Enthalpy of sublimation (atomization) of Xh 190. kJ/mol Use the above data to calculate AH°f for Xhaustium fluoride.

Suppose a chemist discovers a new metallic element and names it "Xhaustium" (Xh). Xh exhibits chemical behaviour similar to an alkaline earth. Xh(s) + F₂(g) → XhF₂(s) Lattice energy for XhF2 -2300. kJ/mol First Ionization energy of Xh 420. kJ/mol Second Ionization energy of Xh 714 kJ/mol Electron affinity of F -327.8 kJ/mol Bond energy of F2 154 kJ/mol Enthalpy of sublimation (atomization) of Xh 190. kJ/mol Use the above data to calculate AH°f for Xhaustium fluoride.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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