General Chemistry: Atoms First
2nd Edition
ISBN: 9780321809261
Author: John E. McMurry, Robert C. Fay
Publisher: Prentice Hall
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Question
Chapter 3, Problem 3.85SP
Interpretation Introduction
Interpretation:
The lattice energy during formation of calcium hydride from calciumand hydrogenhas to be calculated.
Concept introduction:
Lattice energy in ionic solids:
- The strength of energy of ionic bonds in a solid is known as lattice energy. It is also defined as energy required for an ionic solid to split up into single gaseous ions.
- Lattice energy increases with increase in charge of ions (that is small sized ions) and decreases with increase in ionic radii.
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Using a Born-Haber cycle, calculate the enthalpy of formation of calcium fluoride, CaF2(s), given the following data:
Ca(s) → Ca(g), +183 kJ/mol
Ca(g) → Ca+(g) + e-, +595 kJ/mol
Ca+(g) →Ca2+(g) + e-, +1,119kJ/mol
F2(g) → 2F(g), +163 kJ/mol
F(g) + e- → F-(g), -330 kJ/mol
Ca2+(g) + 2F-(g) → CaF2(s), -2,685 kJ/mol
Consider an ionic compound, MXMX, composed of generic metal MM and generic, gaseous halogen XX.
The enthalpy of formation of MXMX is Δ?∘f=−553ΔHf∘=−553 kJ/mol.
The enthalpy of sublimation of MM is Δ?sub=129ΔHsub=129 kJ/mol.
The ionization energy of MM is IE=491IE=491 kJ/mol.
The electron affinity of XX is Δ?EA=−325ΔHEA=−325 kJ/mol. (Refer to the hint).
The bond energy of X2X2 is BE=219BE=219 kJ/mol.
Determine the lattice energy of MXMX.
Δ?lattice=ΔHlattice= kJ/mol
Consider an ionic compound, MXMX, composed of generic metal MM and generic, gaseous halogen XX.
The enthalpy of formation of MXMX is Δ?∘f=−553ΔHf∘=−553 kJ/mol.
The enthalpy of sublimation of MM is Δ?sub=105ΔHsub=105 kJ/mol.
The ionization energy of MM is IE=483IE=483 kJ/mol.
The electron affinity of XX is Δ?EA=−307ΔHEA=−307 kJ/mol. (Refer to the hint).
The bond energy of X2X2 is BE=213BE=213 kJ/mol.
Determine the lattice energy of MXMX.
Δ?lattice=ΔHlattice=
kJ/mol
Chapter 3 Solutions
General Chemistry: Atoms First
Ch. 3.1 - Prob. 3.1PCh. 3.1 - Which of the following drawings is most likely to...Ch. 3.2 - Give systematic names for the following compounds:...Ch. 3.2 - Write formulas for the following compounds: (a)...Ch. 3.2 - Prob. 3.5CPCh. 3.2 - Give systematic names for the following compounds:...Ch. 3.2 - Prob. 3.7PCh. 3.2 - Prob. 3.8CPCh. 3.3 - Predict the ground-state electron configuration...Ch. 3.3 - What doubly positive ion has the following...
Ch. 3.4 - Prob. 3.11PCh. 3.4 - which of the following spheres represents a K+...Ch. 3.5 - Using the periodic table as your guide, predict...Ch. 3.6 - (a) Which has the larger third ionization energy,...Ch. 3.6 - Three atoms have the following electron...Ch. 3.6 - Order the indicated three elements according to...Ch. 3.7 - Prob. 3.17PCh. 3.7 - Which of the indicated three elements has the...Ch. 3.8 - What noble-gas configurations are the following...Ch. 3.8 - Prob. 3.20PCh. 3.9 - Calculate the net energy change in kilojoules per...Ch. 3.10 - Which substance in each of the following pairs has...Ch. 3.10 - One of the following pictures represents NaCl and...Ch. 3.11 - Prob. 3.24PCh. 3.11 - Complete the following equations so that the same...Ch. 3.12 - Prob. 3.26PCh. 3.12 - Prob. 3.27PCh. 3.14 - Prob. 3.28PCh. 3 - In the following drawings, red spheres represent...Ch. 3 - Which of the following drawings is more likely to...Ch. 3 - Prob. 3.31CPCh. 3 - Prob. 3.32CPCh. 3 - Prob. 3.33CPCh. 3 - Prob. 3.34CPCh. 3 - Prob. 3.35CPCh. 3 - Prob. 3.36CPCh. 3 - Prob. 3.37CPCh. 3 - Prob. 3.38SPCh. 3 - Prob. 3.39SPCh. 3 - Prob. 3.40SPCh. 3 - Prob. 3.41SPCh. 3 - Prob. 3.42SPCh. 3 - Prob. 3.43SPCh. 3 - Prob. 3.44SPCh. 3 - Prob. 3.45SPCh. 3 - Prob. 3.46SPCh. 3 - Prob. 3.47SPCh. 3 - Prob. 3.48SPCh. 3 - Prob. 3.49SPCh. 3 - Prob. 3.50SPCh. 3 - Prob. 3.51SPCh. 3 - Prob. 3.52SPCh. 3 - What is the identity of the element X in the...Ch. 3 - Prob. 3.54SPCh. 3 - Prob. 3.55SPCh. 3 - Prob. 3.56SPCh. 3 - Prob. 3.57SPCh. 3 - Prob. 3.58SPCh. 3 - Prob. 3.59SPCh. 3 - Prob. 3.60SPCh. 3 - Prob. 3.61SPCh. 3 - Prob. 3.62SPCh. 3 - Prob. 3.63SPCh. 3 - Prob. 3.64SPCh. 3 - Prob. 3.65SPCh. 3 - Prob. 3.66SPCh. 3 - Prob. 3.67SPCh. 3 - Which element in each of the following sets has...Ch. 3 - Prob. 3.69SPCh. 3 - Prob. 3.70SPCh. 3 - Prob. 3.71SPCh. 3 - Prob. 3.72SPCh. 3 - Prob. 3.73SPCh. 3 - Prob. 3.74SPCh. 3 - Prob. 3.75SPCh. 3 - Prob. 3.76SPCh. 3 - Prob. 3.77SPCh. 3 - Prob. 3.78SPCh. 3 - Order the following compounds according to their...Ch. 3 - Calculate the energy change in kilojoules per mole...Ch. 3 - Prob. 3.81SPCh. 3 - Prob. 3.82SPCh. 3 - Prob. 3.83SPCh. 3 - Prob. 3.84SPCh. 3 - Prob. 3.85SPCh. 3 - Calculate the overall energy change in kilojoules...Ch. 3 - The estimated lattice energy for CsF2(s) is +2347...Ch. 3 - Prob. 3.88SPCh. 3 - Prob. 3.89SPCh. 3 - Prob. 3.90SPCh. 3 - Prob. 3.91SPCh. 3 - Prob. 3.92SPCh. 3 - Prob. 3.93SPCh. 3 - Prob. 3.94SPCh. 3 - Prob. 3.95SPCh. 3 - Prob. 3.96SPCh. 3 - Prob. 3.97SPCh. 3 - Prob. 3.98SPCh. 3 - Prob. 3.99SPCh. 3 - Prob. 3.100CHPCh. 3 - Prob. 3.101CHPCh. 3 - Prob. 3.102CHPCh. 3 - Prob. 3.103CHPCh. 3 - Prob. 3.104CHPCh. 3 - Prob. 3.105CHPCh. 3 - Prob. 3.106CHPCh. 3 - Prob. 3.107CHPCh. 3 - Prob. 3.108CHPCh. 3 - Prob. 3.109CHPCh. 3 - Prob. 3.110CHPCh. 3 - Prob. 3.111CHPCh. 3 - Prob. 3.112CHPCh. 3 - Prob. 3.113CHPCh. 3 - Prob. 3.114CHPCh. 3 - Given the following information, construct a...Ch. 3 - Given the following information, construct a...Ch. 3 - Consider the electronic structure of the element...Ch. 3 - Prob. 3.118MPCh. 3 - Prob. 3.119MP
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- Determine the lattice energy for LiCl(s) given these data: Sublimation enthalpy of Li, 161 kJ/mol; IE, for Li, 520 kJ/mol; BE of Cl2(g), 242 kJ/mol; electron affinity of Cl, 349 kJ/mol; formation enthalpy of LiCl(s), 408.7 kJ/mol.arrow_forwardChemistry Inorganic Chemistry Question 1 In a proccess of Lithium Chloride synthesis, the following experimental data were collected. Its lattice energy can be calculated from a Born-Haber cycle. Ionization energy of Li = +520 kJ mol Heat to convert Li(s) to Li(g) = +159 kJ mol Heat of formation of LiCl = -409 kJ mol Heat to convert Cl2(g) to Cl(g) = +122 kJ mol Electron affinity of chlorine atoms = -349 kJ mol (a) Using the state symbols (s), (l), (g) and the symbol for an electron, e-, write an equation in each case to define the following terms: (i) The first ionization energy of lithium. (ii) The heat of formation of lithium chloride. (iii) The electron affinity of chlorine. (iv) The lattice energy of lithium chloride. (b) Construct a labeled Born-Haber cycle for the formation of Lithium Chloride. (c) Show the calculation for the lattice energy of Lithium Chloride.arrow_forwardConsider an ionic compound, MXMX, composed of generic metal MM and generic, gaseous halogen XX. The enthalpy of formation of MXMX is Δ?∘f=−411ΔHf∘=−411 kJ/mol. The enthalpy of sublimation of MM is Δ?sub=101ΔHsub=101 kJ/mol. The ionization energy of MM is IE=461IE=461 kJ/mol. The electron affinity of XX is Δ?EA=−325ΔHEA=−325 kJ/mol. (Refer to the hint). The bond energy of X2X2 is BE=189BE=189 kJ/mol. Determine the lattice energy of MXMX.arrow_forward
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