ismchapter9edition4 - Chapter 9 ! Molecular Structure and...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
203 Chapter 9 ! Molecular Structure and Spectra 9-1. (a) (b) (c) 9-2. Dissociation energy of NaCl is 4.27 eV, which is the energy released when the NaCl molecule is formed from neutral Na and Cl atoms. Because this is more than enough energy to dissociate a Cl 2 molecule, the reaction is exothermic. The net energy release is 4.27 eV ! 2.48 eV = 1.79 eV. 9-3. From Cs to F : 3.89 eV ! 3.40 eV = 0.49 eV From Li to I : 5.39 eV ! 3.06 eV = 2.33 eV From Rb to Br : 4.18 eV ! 3.36 eV = 0.82 eV 9-4. CsI : NaF :
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chapter 9 ! Molecular Structure and Spectra 204 (Problem 9-4 continued) LiI : While E d for CsI is very close to the experimental value, the other two are both high. Exclusion principle repulsion was ignored. 9-5. (a) Total potential energy: attractive part of (b) The net ionization energy is: Neglecting the exclusion principle repulsion energy E ex , (c) Including exclusion principle repulsion, 9-6. The dissociation energy is 3.94 eV.
Background image of page 2
Chapter 9 ! Molecular Structure and Spectra 205 9-7. (Equation 9-2) At r 0 the net force on each ion is zero, so we have (from Example 9-2) 9-8. per molecule of NaBr (from Table 9-2) 9-9. For KBr : For RbCl : 9-10. H 2 S , H 2 Te , H 3 P , H 3 Sb
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Chapter 9 ! Molecular Structure and Spectra 206 9-11. (a) KCl should exhibit ionic bonding. (b) O 2 should exhibit covalent bonding. (c) CH 4 should exhibit covalent bonding. 9-12. Dipole moment (Equation 9-3) if the HF molecule were a pure ionic bond. The measured value is , so the HF bond is . 9-13. The measured value should be: 9-14. The measured value is , so the BaO bond is 9-15. Silicon, germanium, tin, and lead have the same outer shell configuration as carbon. Silicon and germanium have the same hybrid bonding as carbon (their crystal structure is diamond, like carbon); however, tin and lead are metallic bonded. (See Chapter 10.)
Background image of page 4
Chapter 9 ! Molecular Structure and Spectra 207 9-16. and and If bonding were ionic, Ionic fraction = fraction of charge transferred = 9-17. (a) Kinetic energy of
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 24

ismchapter9edition4 - Chapter 9 ! Molecular Structure and...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online