Water: The Solvent of Biochemistry

Water: The Solvent of Biochemistry

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Chapter 2 (Page 47 -71)

Photo courtesy of Amnon Levav 2

Periodic Table

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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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