**Title: Understanding Resonance and Chemical Reactions** **Laboratory 12: Synthesizing Alum and Observing Some Aluminum Chemistry** **Section: A/43 | Date: 11/18/2020** --- **Review Problems** 1. **Assigning Formal Charges in Resonance Forms of H₂SO₃** Two resonance structures (I and II) of H₂SO₃ are provided with the task of assigning formal charges to each atom within these structures: **Structure I:** - Oxygen (a): -1 - Oxygen (b): 0 - Sulfur (c): +1 - Oxygen (d): -1 - Oxygen (e): 0 - Hydrogen (f): 0 **Structure II:** - Oxygen (a): 0 - Oxygen (b): 0 - Sulfur (c): 0 - Oxygen (d): 0 - Oxygen (e): 0 - Hydrogen (f): 0 1b. **Analysis of Resonance Forms:** - Determine which resonance form contributes more significantly to the resonance hybrid of H₂SO₃ and provide a justification. 2. **Balancing Chemical Reactions:** - Balance the given reactions: Reaction 1: - __ K(s) + __ H₂O(l) → Reaction 2: - __ Mg(s) + __ O₂(g) → 3. **Electronegativity Order:** - Arrange the elements in order of increasing electronegativity: Se, Cl, S. --- **Diagrams and Explanation:** - The diagrams presented display two possible resonance forms for H₂SO₃, illustrating differences in bonding and electron distribution, crucial for understanding resonance stability. **Note:** Comprehensive analysis of resonance and balancing techniques enhances chemical understanding, critical for laboratory synthesis and reaction prediction.
**Title: Understanding Resonance and Chemical Reactions** **Laboratory 12: Synthesizing Alum and Observing Some Aluminum Chemistry** **Section: A/43 | Date: 11/18/2020** --- **Review Problems** 1. **Assigning Formal Charges in Resonance Forms of H₂SO₃** Two resonance structures (I and II) of H₂SO₃ are provided with the task of assigning formal charges to each atom within these structures: **Structure I:** - Oxygen (a): -1 - Oxygen (b): 0 - Sulfur (c): +1 - Oxygen (d): -1 - Oxygen (e): 0 - Hydrogen (f): 0 **Structure II:** - Oxygen (a): 0 - Oxygen (b): 0 - Sulfur (c): 0 - Oxygen (d): 0 - Oxygen (e): 0 - Hydrogen (f): 0 1b. **Analysis of Resonance Forms:** - Determine which resonance form contributes more significantly to the resonance hybrid of H₂SO₃ and provide a justification. 2. **Balancing Chemical Reactions:** - Balance the given reactions: Reaction 1: - __ K(s) + __ H₂O(l) → Reaction 2: - __ Mg(s) + __ O₂(g) → 3. **Electronegativity Order:** - Arrange the elements in order of increasing electronegativity: Se, Cl, S. --- **Diagrams and Explanation:** - The diagrams presented display two possible resonance forms for H₂SO₃, illustrating differences in bonding and electron distribution, crucial for understanding resonance stability. **Note:** Comprehensive analysis of resonance and balancing techniques enhances chemical understanding, critical for laboratory synthesis and reaction prediction.
Chemistry
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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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Transcribed Image Text:**Title: Understanding Resonance and Chemical Reactions**
**Laboratory 12: Synthesizing Alum and Observing Some Aluminum Chemistry**
**Section: A/43 | Date: 11/18/2020**
---
**Review Problems**
1. **Assigning Formal Charges in Resonance Forms of H₂SO₃**
Two resonance structures (I and II) of H₂SO₃ are provided with the task of assigning formal charges to each atom within these structures:
**Structure I:**
- Oxygen (a): -1
- Oxygen (b): 0
- Sulfur (c): +1
- Oxygen (d): -1
- Oxygen (e): 0
- Hydrogen (f): 0
**Structure II:**
- Oxygen (a): 0
- Oxygen (b): 0
- Sulfur (c): 0
- Oxygen (d): 0
- Oxygen (e): 0
- Hydrogen (f): 0
1b. **Analysis of Resonance Forms:**
- Determine which resonance form contributes more significantly to the resonance hybrid of H₂SO₃ and provide a justification.
2. **Balancing Chemical Reactions:**
- Balance the given reactions:
Reaction 1:
- __ K(s) + __ H₂O(l) →
Reaction 2:
- __ Mg(s) + __ O₂(g) →
3. **Electronegativity Order:**
- Arrange the elements in order of increasing electronegativity: Se, Cl, S.
---
**Diagrams and Explanation:**
- The diagrams presented display two possible resonance forms for H₂SO₃, illustrating differences in bonding and electron distribution, crucial for understanding resonance stability.
**Note:** Comprehensive analysis of resonance and balancing techniques enhances chemical understanding, critical for laboratory synthesis and reaction prediction.
Expert Solution
Step 1
Formal charge (FC) is the charge given to an atom in a molecule, considering that electrons in all chemical bonds are exchanged equally among atoms, regardless of their comparative electronegativity.
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