Question
Asked Feb 13, 2020
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Based on data in Table 8.1, estimate (within 30 kJ/mol) the
lattice energy for (a) LiBr, (b) CsBr, (c) CaCl2.

Lattice Energies for Some Ionic Compounds
TABLE 8.1
Lattice Energy (kJ/mol)
Compound
Lattice Energy (kJ/mol)
Compound
1030
LiF
MgCl2
2526
LİCI
834
SrCl2
2127
Lil
730
NaF
910
MgO
3795
NaCl
3414
788
Cao
NaBr
732
Sro
3217
Nal
682
KF
808
ScN
7547
КСІ
701
Kвг
671
CSCI
657
600
CsI
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Lattice Energies for Some Ionic Compounds TABLE 8.1 Lattice Energy (kJ/mol) Compound Lattice Energy (kJ/mol) Compound 1030 LiF MgCl2 2526 LİCI 834 SrCl2 2127 Lil 730 NaF 910 MgO 3795 NaCl 3414 788 Cao NaBr 732 Sro 3217 Nal 682 KF 808 ScN 7547 КСІ 701 Kвг 671 CSCI 657 600 CsI

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Expert Answer

Step 1

(a)

The ionic compound LiBr has cation Li+ and anion Br-. The lattice energy for LiBr is the amount of energy to be supplied to one mole of solid ionic LiBr to break it into its component gaseous ions.

The lattice energy for LiBr can be calculated using the formula given below.

Chemistry homework question answer, step 1, image 1

Step 2

(b)

The ionic compound CsBr has cation Cs+ and anion Br-. The lattice energy for CsBr is the amount of energy to be supplied to one mole of solid ionic CsBr to break it into its component gaseous ions.

The lattice energy for CsBr can be calculated using the formula giv...

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