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Chapter 15 Lecture 1

Chapter 15 Lecture 1 - Chapter 15 Lecture 1 Chapter 15 is...

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Chapter 15 Lecture 1 Chapter 15 is about acids and bases. These critters are about 25% of all chemistry. Bronsted-Lowry An Acid is: A Base is: Gee DP, how do I recognize an acid or a base from its formula? 1. Capacity Who’s got the proton? hydrogen ion? The concept of conjugate: Similar yet opposite in function Spouse? Consider the reaction between periodic acid and ammonia. Label conjugate acid and bases. You do one: bicarbonate ion with hydroxide
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2. Strength Strong acids shed all their protons. Strong bases hold onto all their protons. Did you memorize the list in Table 4.1? Strong – weak conjugate rule HCl + OH - H 2 O + Cl - What happens here? CH 3 COOH + OH - Or CH 3 COOH + CO 3 2 -
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Structure determines Strength of Acids Charge Density - Electronegativity F - I - H O Cl O O O H O Cl O O H O Cl O H O Cl
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So which is the stronger acid HClO 4 or H 2 SO 4 ? Which is more electronegative, Cl or S? Which is the stronger acid, HClO 3 or HIO 3 ?
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