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CH8_Page_06 - 8.20 8.22 8.24(a teh'aehloromethane(b...

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Unformatted text preview: 8.20 8.22 8.24 (a) teh'aehloromethane, (b) tetachloromelhane, (0) water (a) hydwphilie, hydrogen bonding; (h) hydrophobic, nonpolar; (o) hydrophiliq hydrogen bonding, and dipole-dipole interactions; (d) C1 could be hydrophilie because of possible dipole-dipole interactions [depending on the eleehonegativity of the stem to which the Cl atom is bonded. as well as the Symmehy or mymmetry of the molecule in which it. is found). Oil-terwise, London forces would predominate and Cl would be hydrophobic. (a) The solubility of air in water is 7.9x10" mol -L'] -atm" and the molar mes of air (average) = 28.927 g -mol" (see Table 5.1). solubility = k" x P solubility [g+L"} = l .0 son >< 7.9x104 l't'lx.il-L"-sttr1'l x 23.9? g- mol'] 3-: 10" mug-g" = 23 mg - L'1 (la) The solubility of He is 3.? x104 moi ~L'l aim". solubility (g- L'1)=1.0 atmx3.'?x ll)" Tool-L" -atm'] x 4.00 gsmol'1 x105 nag-g"i = 1.5 mg L"E (c) solubility 25 kPa —~——- 3.7 It)“ l-L"- tm'] 4.0-0 . 1'1 lfll.325kPa-atn_lx X m a x gm“ (g-L")= x 1-03 mg-g" =03? mg 232 ...
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