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Unformatted text preview: Nonpolar molecules are often hydrophobic, "don't get along with water" Other attractions (sometimes also referred to as "bonds" or "weak attractions") • Hydrogen bonds (formed when polar molecules stick together) • Other weak attractions from temporary shifts in charge within molecules Water • Water is cohesive—hydrogen bonds make it "sticky" • May be represented H 2 O or H-O-H or HOH • Solvent: something in which other molecules (solutes) are dissolved • Solution: mixture of solutes dissolved in a fluid solvent pH: acids, bases, and buffers • Water molecules may dissociate into H + and OH-o H + is the hydrogen ion o OH-is the hydroxide ion • Solutions with equal proportion of H + and OH-are "neutral" • Acids: solutions with higher proportion of H + • Bases: solutions with a lower proportion of H + (alkaline solutions) • Can be expressed as "power of Hydrogen" or pH...
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This note was uploaded on 01/30/2012 for the course BSC BSC1085 taught by Professor Sharonsimpson during the Fall '10 term at Broward College.
- Fall '10