Chapter03SolutionsManual - Chapter 3 Acids and Bases Review...

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Chapter 3 Acids and Bases Review of Concepts Fill in the blanks below. To verify that your answers are correct, look in your textbook at the end of Chapter 3. Each of the sentences below appears verbatim in the section entitled Review of Concepts and Vocabulary . A Brønsted-Lowry acid is a proton ________, while a Brønsted-Lowry base is a proton ________. The mechanism of proton transfer always involves at least _____ curved arrows. A strong acid has a _____ p K a , while a weak acid has a _____ p K a . There are four factors to consider when comparing the ___________ of conjugate bases. The equilibrium of an acid-base reaction always favors the more ____________ negative charge. A Lewis acid is an electron ___________, while a Lewis base is an electron ____________. Review of Skills Fill in the blanks and empty boxes below. To verify that your answers are correct, look in your textbook at the end of Chapter 3. The answers appear in the section entitled SkillBuilder Review . SkillBuilder 3.1 Drawing the Mechanism of a Proton Transfer H O H DRAW THE CURVED ARROWS FOR THE FOLLOWING ACID-BASE REACTION + CH 3 O HO + CH 3 OH SkillBuilder 3.2 Using p K a Values to Compare Acids O O H O H H H CIRCLE THE COMPOUND BELOW THAT IS MORE ACIDIC pKa = 4.75 pKa = 19.2 SkillBuilder 3.3 Using p K a Values to Compare Basicity O O O O O O pKa = 9 pKa = 19 COMPARE THE FOLLOWING pK a VALUES: AND CIRCLE THE STRONGER BASE BELOW
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CHAPTER 3 41 SkillBuilder 3.4 Using p K a Values to Predict the Position of Equilibrium O O OH O O H O H p K a = 9.0 p K a = 15.7 CIRCLE THE SIDE OF THE EQUILIBRIUM THAT IS FAVORED: SkillBuilder 3.5 Assessing Relative Stability. Factor #1: Atom H N O H COMPARE THE TWO PROTONS SHOWN IN THE FOLLOWING COMPOUND, AND CIRCLE THE ONE THAT IS MORE ACIDIC. USE THE EXTRA SPACE TO DRAW THE TWO POSSIBLE CONJUGATE BASES. SkillBuilder 3.6 Assessing Relative Stability. Factor #2: Resonance O O H O H COMPARE THE TWO PROTONS SHOWN IN THE FOLLOWING COMPOUND, AND CIRCLE THE ONE THAT IS MORE ACIDIC. USE THE EXTRA SPACE TO DRAW THE TWO POSSIBLE CONJUGATE BASES. SkillBuilder 3.7 Assessing Relative Stability. Factor #3: Induction O H O CCl 3 H COMPARE THE TWO PROTONS SHOWN IN THE FOLLOWING COMPOUND, AND CIRCLE THE ONE THAT IS MORE ACIDIC. USE THE EXTRA SPACE TO DRAW THE TWO POSSIBLE CONJUGATE BASES. SkillBuilder 3.8 Assessing Relative Stability. Factor #4: Orbital COMPARE THE TWO PROTONS SHOWN IN THE FOLLOWING COMPOUND, AND CIRCLE THE ONE THAT IS MORE ACIDIC. USE THE EXTRA SPACE TO DRAW THE TWO POSSIBLE CONJUGATE BASES. H H SkillBuilder 3.9 Assessing Relative Stability. Using all Four Factors N H H COMPARE THE TWO PROTONS SHOWN IN THE FOLLOWING COMPOUND, AND CIRCLE THE ONE THAT IS MORE ACIDIC. USE THE EXTRA SPACE TO DRAW THE TWO POSSIBLE CONJUGATE BASES. SkillBuilder 3.10
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This note was uploaded on 02/04/2012 for the course CHEM 3303 taught by Professor Rahman during the Fall '11 term at University of Central Oklahoma.

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Chapter03SolutionsManual - Chapter 3 Acids and Bases Review...

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