Water: The Solvent of Biochemistry
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Chapter 2 (Page 47 -71)
Photo courtesy of Amnon Levav 2
Comparison of Solvent Properties.
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Hydrogen Bonds in Polar Molecules
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A
B C
Water dissolves Ionic Compounds
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Nonpolar Molecules are Poorly Soluble in Water
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The Interaction of Amphipathic Compounds and Water
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Polar, Nonpolar, and Amphiphatic Biomolecules
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van der Waals Radius
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Comparion of Covalent and Noncovalent Interactions
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Noncovalent Interactions
Solutes affect the Colligative Properties of Water
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• Solute influence on vapor pressure, boiling point, and freezing point.
• Osmosis
“Proton hopping” in Water
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The pH of some Aqueous Fluids
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Titration Curve for a Weak Acid
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Buffering by Acetic Acid
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