F08-BCH361-L2

F08-BCH361-L2 - Water - the solvent of life The three...

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Unformatted text preview: Water - the solvent of life The three phases of water Water Gas phase water ice Melting point 0 o C Boiling point 100 o C Water is a polar molecule: it behaves as a dipole It has an extremely high boiling point of 100 o C due to the formation of hydrogen bonds Structure of Ice Anomalous behavior of water Density of ice 0.92 kg/l water at 0 o C 1.00 kg/l water has its highest density at 4 o C Water as a solvent: polar substances (as salts) are dissolved in water Hydrated ions H-bond formed in water Bonding of water to other molecules H-bonds in proteins and nucleic acids Hydrophobic substances increase the order of water molecules => unfavorable Formation of micelles The self-dissociation of water and the pH Scale Blackboard-----lemon juice----sauerkraut, orange juice, wine----tomato juice----coffee----milk---- caustic soda---- pure water---- ammonia---- Borax---Gastric Juice----Urine---------------Salvia----Blood--------------Pancreatic Juice...
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This note was uploaded on 09/30/2011 for the course BCH 361 taught by Professor Fromme during the Fall '08 term at ASU.

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F08-BCH361-L2 - Water - the solvent of life The three...

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