General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN: 9781305580343
Author: Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher: Cengage Learning
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Textbook Question
Chapter 8, Problem 8.120QP
Calculate ΔH for the following process:
The lattice energy of KBr is 689 kJ/mol, and the ionization energy of K is 419 kJ/mol. The
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Suppose a chemist discovers a new metallic element and names it "Xercisium" (Xr). Xr exhibits chemical behaviour similar to an alkaline earth.
Xr(s) + Cl2(g) → XrCl2(s)
Lattice energy for XrCl2
-2020. kJ/mol
First Ionization energy of Xr
500. kJ/mol
Second Ionization energy of Xr
950. kJ/mol
Electron affinity of Cl
-348.7 kJ/mol
Bond energy of Cl2
239 kJ/mol
Enthalpy of sublimation (atomization) of Xr
200. kJ/mol
Use the above data to calculate ΔH°f for Xercisium chloride.
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
-2140. kJ/mol
First Ionization energy of Xh
310. kJ/mol
Second Ionization energy of Xh
589 kJ/mol
Electron affinity of F
-327.8 kJ/mol
Bond energy of F2
154 kJ/mol
Enthalpy of sublimation (atomization) of Xh
150. kJ/mol
Use the above data to calculate ΔH°f for Xhaustium fluoride.
Your answer must be accurate and precise to the nearest 1 kJ/mol, as are the given parameters.
Suppose a chemist discovers a new metallic element and names it "Xtrinsium" (Xt).
Xt exhibits chemical behaviour similar to an alkaline earth.
Xt(s) + F2(g) → XtF2(s)
Lattice energy for XtF2
-2360. kJ/mol
First Ionization energy of Xt
520. kJ/mol
Second Ionization energy of Xt
936 kJ/mol
Electron affinity of F
-327.8 kJ/mol
Bond energy of F2
154 kJ/mol
Enthalpy of sublimation (atomization) of Xt
180. kJ/mol
Use the above data to calculate ΔH°f for Xtrinsium fluoride.
Chapter 8 Solutions
General Chemistry - Standalone book (MindTap Course List)
Ch. 8.1 - Look at the following orbital diagrams and...Ch. 8.2 - Imagine a world in which the Pauli principle is No...Ch. 8.3 - Use the building-up principle to obtain the...Ch. 8.3 - Prob. 8.3ECh. 8.3 - Prob. 8.4ECh. 8.3 - Prob. 8.2CCCh. 8.4 - Write an orbital diagram for the ground state of...Ch. 8.6 - Prob. 8.6ECh. 8.6 - The first ionization energy of the chlorine atom...Ch. 8.6 - Prob. 8.8E
Ch. 8.6 - Prob. 8.3CCCh. 8.7 - Prob. 8.4CCCh. 8 - Describe the experiment of Stern and Gerlach. How...Ch. 8 - Prob. 8.2QPCh. 8 - Prob. 8.3QPCh. 8 - What is the maximum number of electrons that can...Ch. 8 - List the orbitals in order of increasing orbital...Ch. 8 - Prob. 8.6QPCh. 8 - Prob. 8.7QPCh. 8 - Prob. 8.8QPCh. 8 - Prob. 8.9QPCh. 8 - Prob. 8.10QPCh. 8 - Describe the major trends that emerge when atomic...Ch. 8 - Prob. 8.12QPCh. 8 - What main group in the periodic table has elements...Ch. 8 - Prob. 8.14QPCh. 8 - Prob. 8.15QPCh. 8 - Prob. 8.16QPCh. 8 - What is the name of the alkali metal atom with...Ch. 8 - What would you predict for the atomic number of...Ch. 8 - Prob. 8.19QPCh. 8 - Prob. 8.20QPCh. 8 - Prob. 8.21QPCh. 8 - Prob. 8.22QPCh. 8 - Prob. 8.23QPCh. 8 - Prob. 8.24QPCh. 8 - Prob. 8.25QPCh. 8 - Which of the following atoms, designated by their...Ch. 8 - Prob. 8.27QPCh. 8 - Prob. 8.28QPCh. 8 - Periodic Properties I A hypothetical element, X,...Ch. 8 - Prob. 8.30QPCh. 8 - Prob. 8.31QPCh. 8 - Prob. 8.32QPCh. 8 - Prob. 8.33QPCh. 8 - Prob. 8.34QPCh. 8 - Prob. 8.35QPCh. 8 - Prob. 8.36QPCh. 8 - Two elements are in the same group, one following...Ch. 8 - Prob. 8.38QPCh. 8 - Prob. 8.39QPCh. 8 - Prob. 8.40QPCh. 8 - Which of the following orbital diagrams are...Ch. 8 - Which of the following orbital diagrams are...Ch. 8 - Which of the following electron configurations are...Ch. 8 - Choose the electron configurations that are...Ch. 8 - Write all of the possible orbital diagrams for the...Ch. 8 - Prob. 8.46QPCh. 8 - Prob. 8.47QPCh. 8 - Use the building-up principle to obtain the...Ch. 8 - Use the building-up principle to obtain the...Ch. 8 - Give the electron configuration of the ground...Ch. 8 - Barium is a Group 2A element in Period 6. Deduce...Ch. 8 - Bismuth is a Group 5A element in Period 6. Write...Ch. 8 - Tungsten is a Group 6B element in Period 6. What...Ch. 8 - Manganese is a Group 7B element in Period 4. What...Ch. 8 - Thallium has the ground-state configuration...Ch. 8 - The configuration for the ground state of iridium...Ch. 8 - Write the orbital diagram for the ground state of...Ch. 8 - Prob. 8.58QPCh. 8 - Write an orbital diagram for the ground state of...Ch. 8 - Write an orbital diagram for the ground state of...Ch. 8 - Order the following elements by increasing atomic...Ch. 8 - Using periodic trends, arrange the following...Ch. 8 - Using periodic trends, arrange the following...Ch. 8 - Arrange the following elements in order of...Ch. 8 - From what you know in a general way about electron...Ch. 8 - Prob. 8.66QPCh. 8 - If potassium chlorate has the formula KClO3, what...Ch. 8 - Prob. 8.68QPCh. 8 - Write the complete ground-state electron...Ch. 8 - Prob. 8.70QPCh. 8 - Obtain the valence-shell configuration of the...Ch. 8 - Prob. 8.72QPCh. 8 - Write the orbital diagram for the ground state of...Ch. 8 - Prob. 8.74QPCh. 8 - Prob. 8.75QPCh. 8 - Prob. 8.76QPCh. 8 - From Figure 8.18, predict the first ionization...Ch. 8 - Prob. 8.78QPCh. 8 - Prob. 8.79QPCh. 8 - Prob. 8.80QPCh. 8 - Prob. 8.81QPCh. 8 - Match each element on the right with a set of...Ch. 8 - Find the electron configuration of the element...Ch. 8 - Find the electron configuration of the element...Ch. 8 - Prob. 8.85QPCh. 8 - Prob. 8.86QPCh. 8 - Prob. 8.87QPCh. 8 - Prob. 8.88QPCh. 8 - Prob. 8.89QPCh. 8 - Prob. 8.90QPCh. 8 - The following are orbital diagrams for presumed...Ch. 8 - Prob. 8.92QPCh. 8 - A metallic element, M, reacts vigorously with...Ch. 8 - A nonmetallic element, R, burns brightly in air to...Ch. 8 - The ground-state electron configuration of an atom...Ch. 8 - Prob. 8.96QPCh. 8 - Prob. 8.97QPCh. 8 - Prob. 8.98QPCh. 8 - Prob. 8.99QPCh. 8 - A neutral atom has the electron configuration...Ch. 8 - Prob. 8.101QPCh. 8 - A metallic element reacts vigorously with water,...Ch. 8 - Prob. 8.103QPCh. 8 - Prob. 8.104QPCh. 8 - Prob. 8.105QPCh. 8 - Prob. 8.106QPCh. 8 - An atom easily loses two electrons to form the ion...Ch. 8 - Prob. 8.108QPCh. 8 - Prob. 8.109QPCh. 8 - The electron affinity of the lutetium atom...Ch. 8 - Prob. 8.111QPCh. 8 - Prob. 8.112QPCh. 8 - Prob. 8.113QPCh. 8 - Prob. 8.114QPCh. 8 - How much energy would be required to ionize 5.00...Ch. 8 - Prob. 8.116QPCh. 8 - Prob. 8.117QPCh. 8 - Prob. 8.118QPCh. 8 - The lattice energy of an ionic solid such as NaCl...Ch. 8 - Calculate H for the following process:...
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- Which compound in each of the following pairs of ionic substances has the most negative lattice energy? Justify your answers. a. LiF, CsF b. NaBr, NaI c. BaCl2, BaO d. Na2SO4, CaSO4 e. KF, K2O f. Li2O, Na2Sarrow_forwardDefine the term lattice energy. Why, energetically, do ionic compounds form? Fig. 3-8 illustrates the energy changes involved in the formation of MgO(s) and NaF(s). Why is the lattice energy of MgO(s) so different from that of NaF(s)? The magnesium oxide is composed of Mg2+ and O2 ions. Energetically, why does Mg2+O2 form and not Mg+O? Why doesnt Mg3+O3 form?arrow_forwardn your own words, what is meant by the term electronegativity? What are the trends across and down the periodic table for electronegativity? Explain them, and describe how they are consistent with trends of ionization energy and atomic radii.arrow_forward
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