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Acid-Base Reactions: Identifying Acidic and Basic Compounds and Their Conjugate Bases, Study notes of Chemistry

Inorganic ChemistryOrganic ChemistryPhysical Chemistry

A series of exercises to help students understand the concepts of acidity and basicity, as well as the relationship between acids and their conjugate bases. Students are asked to rank compounds based on their acidity or basicity, identify the favored direction of acid-base reactions at equilibrium, and determine the Lewis acids and bases in given reactions. The document also includes questions that require students to draw resonance structures and identify the most acidic proton in each compound.

What you will learn

  • Determine the number of lone pair electrons on the oxygen atom in the reactant and product for each given reaction.
  • Identify the favored direction of the acid-base reaction at equilibrium for each given pair of pKa values.
  • Identify the Lewis acid (LA) and Lewis base (LB) on the left side of each reaction.
  • Given the pKa values for the compounds A through D, rank their conjugate bases from least to most basic.
  • Rank the compounds A through D from least to most acidic based on the pKa values given.
  • Which compound is the least acidic among A, B, C, and D based on their pKa values?

Typology: Study notes

2021/2022

Uploaded on 09/27/2022

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Download Acid-Base Reactions: Identifying Acidic and Basic Compounds and Their Conjugate Bases and more Study notes Chemistry in PDF only on Docsity! Chapter 03: 1 1) Rank compounds A through D from least to most acidic. pKa 19.3  pKa 9  pKa 9.9  pKa 4.8  2) Identify the least and most acidic compounds. 3) Rank compounds A through D from least to most acidic. DA BC B C C BA Chapter 03: 2 4) Given the following pKa values for the following compounds, rank their conjugate bases (A – D) from least to most basic.  pKa 25  pKa 38  pKa 18  pKa 16  A  B  C  D  pKa –2.9  pKa –1.74  pKa 15.7  pKa –7  A  B  C  D  O 5) Rank the compounds according to acidity of the highlighted H. TRY IT WITHOUT pKa VALUES  A  B  C  D  D C A B D A B C DB Chapter 03: 5 14) Circle the compound that has the most acidic proton (boxed) (Hint: evaluate the stability of the conjugate base).  Draw the conjugate base of each acid in the box below it.  a. If the conjugate base can form a resonance structure, draw a resonance structure in the box below it. b. If no resonance structure of the conjugate base (C.B.) can be drawn, then draw an X in the box. Example‐‐will not be provided on Exams  X X X Chapter 03: 6 O H O Cl Cl Cl H 15) For each compound CIRCLE the most acidic proton designated with an arrow. 16) Go to Klein end of chapter problems for Chapter 3: 34‐37, 39‐48  X
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