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Part 09 IMFA and Solubility

Part 09 IMFA and Solubility. 1. Solutions - homogeneous mixture - dissolved substance: solute - dissolving substance: solvent - e.g. sugar in water sugar is the solute water is the solvent.

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Part 09 IMFA and Solubility

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  1. Part 09IMFA and Solubility

  2. 1. Solutions - homogeneous mixture - dissolved substance: solute - dissolving substance: solvent - e.g. sugar in water sugar is the solute water is the solvent Water can form H-bonds with substances that also have H with F,O,N. This enhances the dissovling. Water is the UNIVERSAL SOLVENT, aqueous If alcohol (nonpolar) is the solvent, it is called a tincture

  3. 2. Solubility - ability of one substance to dissolve in another - nonpolar solutes dissolve in nonpolar solvents - polar solutes dissolve in polar solvents - ionic solutes dissolve in polar solvents

  4. 2. Solubility - “Like Dissolves Like” Rule - solute and solvent must be chemically compatible - must have similar IMFA so the solute is attracted to the solvent and vice verse

  5. p. 78 1. Nonpolar Molecule London Forces Br Br Is Br2 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  6. 2. H Nonpolar Molecule London Forces S H Is H2S soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  7. 3. H Nonpolar Molecule London Forces P H H Is PH3 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  8. 4. H Nonpolar Molecule London Forces Ge H H H Is GeH4 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  9. 5. d- Polar Molecule Dipole-Dipole Cl S Cl d- d+ d+ Is SCl2 soluble or insoluble in water? Soluble, it is polar and water is polar so there are dipole-dipole attractions between them.

  10. Page 82 Nonpolar Molecule London Forces 1. Se Se C Is CSe2 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  11. Cl 2. Nonpolar Molecule London Forces Cl d- d+ As Cl Cl Cl Is AsCl5 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  12. 3. I Nonpolar Molecule London Forces d- d+ B I I Is BI3 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  13. 4. Polar Molecule Dipole-Dipole d- d+ O N d+ d- Is NO soluble or insoluble in water? Soluble, it is polar and water is polar so there are dipole-dipole attractions between them.

  14. 5. Nonpolar Molecule London Forces F F Rn d- d+ Is RnF2 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  15. p. 86 1. Polar Molecule Dipole-Dipole Br F d- d+ d+ d- Is BrF soluble or insoluble in water? Soluble, it is polar and water is polar so there are dipole-dipole attractions between them.

  16. 2. Br Nonpolar Molecule London Forces d- d+ B Br Br Is BBr3 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  17. 3. Cl Nonpolar Molecule London Forces d- d+ Ge Cl Cl Cl Is GeCl4 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  18. 4. Br Nonpolar Molecule London Forces Br d- As d+ Br Br Br Is AsBr5 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  19. 5. F Nonpolar Molecule London Forces d- F F d+ S F F F Is SF6 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  20. F 1. d- d+ Cl F d+ d- F p. 94 Polar Molecule Dipole-Dipole Attractions Is ClF3 soluble or insoluble in water? Soluble, it is polar and water is polar so there are dipole-dipole attractions between them.

  21. 2. Br Br Br P d- d+ Br Br Nonpolar Molecule London Forces Is PBr5 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  22. 6. Se Nonpolar Molecule London Forces P Se Is PSe2 soluble or insoluble in water? Insoluble, it is nonpolar and water is polar so there are no IMFAs between them.

  23. d- 3. Cl Cl Cl d- d+ Rn Cl Cl Cl d+ Polar Molecule Dipole-Dipole Attractions Is RnCl6 soluble or insoluble in water? Soluble, it is polar and water is polar so there are dipole-dipole attractions between them.

  24. d- 4. F F F d- d+ I F F d+ Polar Molecule Dipole-Dipole Attractions Is IF5 soluble or insoluble in water? Soluble, it is polar and water is polar so there are dipole-dipole attractions between them.

  25. P d+ d+ d- d- Br O 5. P-O 1.4 P-Br 0.7 d+ Polar Molecule Dipole-Dipole Attractions d- Is POBr soluble or insoluble in water? Soluble, it is polar and water is polar so there are dipole-dipole attractions between them.

  26. O d- d+ C d+ d+ d- d- Cl Cl 6. C-O 1.0 C-Cl 0.5 d- Polar Molecule Dipole-Dipole Attractions d+ Is COCl2 soluble or insoluble in water? Soluble, it is polar and water is polar so there are dipole-dipole attractions between them. Assignment p. 96 and Invest. 09

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