Draw the products of the following acid/base reactions, depict the proton exchange with electron-pu arrows, AND circle the proper reaction arrow to indicate if reactants or products (or neither) are favor equilibrium. Using our pKa table, write all relevant pKa values (i.e. for the two reactants if available am conjugate acid). Finally, label the Acid, Base, Conjugate Acid, and Conjugate Base. H H. H H-C-N-H Нн H. MacBook
Draw the products of the following acid/base reactions, depict the proton exchange with electron-pu arrows, AND circle the proper reaction arrow to indicate if reactants or products (or neither) are favor equilibrium. Using our pKa table, write all relevant pKa values (i.e. for the two reactants if available am conjugate acid). Finally, label the Acid, Base, Conjugate Acid, and Conjugate Base. H H. H H-C-N-H Нн H. MacBook
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Draw the products of the following acid/base reactions, depict the proton exchange with electron-pushing arrows, AND circle the proper reaction arrow to indicate if reactants or products (or neither) are favoured at equilibrium. Using the provided pKa table, write all relevant pKa values (i.e. for the two reactants if available and the conjugate acid). Finally, label the acid, base, conjugate acid, and conjugate base.

Transcribed Image Text:**Title: Understanding Acid-Base Reactions and Equilibrium**
**Introduction:**
When studying acid-base reactions, it is important to understand how proton exchanges occur, how to represent them with electron-pushing arrows, and how to determine the direction of the equilibrium. In this guide, we will explore a series of reactions, identify the acids and bases, and use \( pK_a \) values to predict the favored direction of equilibrium.
**Reactions:**
1. **Reaction 1:**
- **Reactants:**
- Left Molecule: Carbonate ion with a hydrogen atom.
- Right Molecule: Sulfur-containing oxyacid.
- **Diagram Explanation:**
- Both structures are illustrated with electron dots representing lone pairs.
- Arrow shows the proposed proton transfer between molecules.
2. **Reaction 2:**
- **Reactants:**
- Left Molecule: Phenol.
- Right Molecule: Pyridine.
- **Diagram Explanation:**
- The arrow indicates the direction of proposed proton transfer.
3. **Reaction 3:**
- **Reactants:**
- Left Molecule: Ammonia.
- Right Molecule: Acetylene anion.
- **Diagram Explanation:**
- Illustrates electron pair movements with arrows pointing to where protons are transferred.
**Instructions:**
- **Depiction of Proton Exchange:**
- Use curved arrows to indicate the transfer of protons between the acids and bases.
- **Equilibrium Direction:**
- Circle the reaction arrow to indicate the favored side (reactants or products) based on \( pK_a \) values.
- **Labeling Acids and Bases:**
- Identify and label the Acid, Base, Conjugate Acid, and Conjugate Base for each reaction.
**Using \( pK_a \) Tables:**
Refer to the \( pK_a \) values for each compound involved to determine which direction the equilibrium will favor. The relative strengths of the acids and bases will guide this determination.
This understanding will help in predicting not only the reactions themselves but also the dynamics of where equilibrium will lie in acid-base reactions, providing a fundamental insight into chemical equilibria.

Transcribed Image Text:### Table of pKₐ Values
The table presented includes a comprehensive list of compounds and their associated pKₐ values. The pKₐ value is a measure of the strength of an acid, specifically the negative logarithm of its acid dissociation constant (Kₐ). The lower the pKₐ value, the stronger the acid.
#### Page 1:
**Compounds and their pKₐ Values:**
1. **CH₄** - pKₐ: 10.1
2. **NH₃** - pKₐ: 9.2
3. **CH₃CH₂CH₃** - pKₐ: 10.2
4. **H₂O** - pKₐ: 15.7
5. **CH₃OH** - pKₐ: 15.5
6. **CH₃CH₂OH** - pKₐ: 16.0
7. **(C₆H₅)₂NH** - pKₐ: 3.7
8. **Phenol** - pKₐ: 10.0
9. **HCOOH** - pKₐ: 3.8
10. **CH₃COOH** - pKₐ: 4.8
(Note: The list is a sample of some compounds for illustration.)
### Diagrams:
The document primarily showcases structures of various organic and inorganic compounds next to their pKₐ values. Each structure is illustrated with standard chemical notation, displaying the connections between atoms within a molecule.
**Understanding the Diagrams:**
Each chemical structure helps in visual identification of functional groups present in the molecules which impact acidity. For instance, the hydroxyl group (-OH) in alcohols and phenols, carboxylic group (-COOH) in acids, and amino group (-NH₂) in amines are commonly shown.
### Usage:
- **Educational Purpose:** This table is instrumental for students learning about acid-base chemistry. It provides reference values essential for predicting reaction outcomes during chemical synthesis.
- **Research and Analysis:** Researchers may use these values to determine solvent effects or reaction pathways.
Importantly, some values have notes indicating the values are for the red H atom in universes, catering to cases with resonance or mesomeric effects that influence acid strength.
### Conclusion
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