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Unformatted text preview: and predict the compound in each pair that has the higher boiling point: (a) C 6 H 14 or C 8 H 18 ; (b) C 3 H 8 or CH 3 OCH 3 ; (c) HOOH or HSSH ; (d) CH 3 CH 3 or NH 2 NH 2 . 4. Two isomers of the planar compound 1,2-dichloroethene are shown below, along with their melting and boiling points: Melting point (C) 80.5 49.8 Boiling point (C) 60.3 47.5 (a) Which of the two isomers will have stronger dipole-dipole forces, and does this help to explain the difference in boiling points? (b) Try to explain the difference in melting points. (Hint: intermolecular forces are NOT the dominant factor!)...
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- Spring '06