222 CHAPTER 6 lonic and Molecular Compounds QUESTIONS AND PROBLEMS 6.9 Attractiv

Question

222 CHAPTER 6 lonic and Molecular Compounds QUESTIONS AND PROBLEMS 6.9 Attractive Forces in Compounds LEARNING GOAL Describe the attractive forces between 6.84 Identify the strongest ons, polar covalent molecules, and nonpolar covalent molecules each of the following b. SiH 6.81 Identify the major type of attractive force between the particles c CH.C of each of the following a. BrE 6.85 Identuify the substance in each of the following pairs that would b. KCI c. NF huve the higher boiling point and explain your choice a. HF or HB c. MgBr or PBr d. C 6.82 Identify the major type of attractive force between the particles b. HF or Nal of each of the following a. HC d. NH, 686 Ideatify the substance in each of the following pais that would have the higher boiling point and esplain your choice a. NaCI or HC c. NH, or PH the particles of b. HO or H,Se a. CHOH c. CF h. CO d. CH,--Cli, Clinical Update l Compounds at the Pharmacy A few days ago, Richard went back to the pharmacy to pick up aspi- rin, CaH O, and acetaminophen, C,NO He also wanted to talk to ut a way to treat his sore toe. Sarah recommended soaking Clinical Applications 6.87

Explanation / Answer

a. BrF: Florine being most electronegative elemnt, a polar bond is resulted. Dipole-dipole interactions are predominant in polar compounds.

b. KCl: The bond between K and Cl is ionic so Ionic interactions exist between them.

C. NF3: London Dispersion Forces and Dipole-dipole interactions, but the dipole dipole are predominant.

d. Cl2 : The bonding here is covalent, so a non polar bond. Hence London Dispersion Forces are the only forces.

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