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Unformatted text preview: lCng Points and Boiling Points are indicators of the strength of intermolecular forces • H2O • CH3CH2OH • C6H14 Water as a Solvent Why do polar and nonpolar molecules have diﬀerent physical properCes? Diﬀerent IMF’s lead to diﬀerent physical properCes. The stronger the IMF, the Cghter the individual molecules are held together, the more energy it takes to overcome those a>racCons. Water as a Solvent Use the concept of IMF to explain solubility. Unit 7 Week 5 Lecture 11 Some soluCons can carry a charge, others cannot. ElectrolyCc soluCons can carry a charge and complete a circuit. Non‐electrolyCc soluCons cannot. Intra‐molecular Forces versus Inter‐molecular Forces Tab. 5.8 Tab. 5.9 Oil and water don’t mix well, hydrophilic vs hydrophobic Oxygen in water? Why the seas are salty. • Some salts are very soluble in water. Over Cme those salts have dissolved water that drained into the oceans. The water in the ocean conCnually evaporated and rained down over land, conCnuing...
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- Spring '08