Topic 1 Part B - Nature of molecules S10 1pp

Topic 1 Part B - Nature of molecules S10 1pp - TOPIC 1 -...

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1 TOPIC 1 - Part B The Nature of Molecules Water Chemistry Chapter 3
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2 OBJECTIVES To understand or know: What a polar molecule is what a hydrogen bond is The 4 properties of liquid water that arise from hydrogen bonding Distinguish between the following sets of terms: hydrophobic and hydrophilic substances; a solute, a solvent, and a solution Define acid, base, and pH Explain how buffers work
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3 KEY WORDS AND PHRASES polarity; hydrogen bonds cohesion; adhesion; specific heat; heat of vaporization; evaporation Solute; solvent; aqueous solution; hydrophilic; hydrophobic, hydration shell Proton; hydroxide ion; hydronium ion; pH scale; acid; base; weak acid; strong acid; buffer
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4 BACKGROUND Water is biological medium on Earth All living organisms require water more than any other substance Most cells surrounded by water cells themselves are about 70–95% water Abundance of water is main reason Earth is habitable
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5 Water Chemistry Water is highly polar
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This note was uploaded on 05/18/2010 for the course BIO 188 taught by Professor Capco during the Spring '08 term at ASU.

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Topic 1 Part B - Nature of molecules S10 1pp - TOPIC 1 -...

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