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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Will you explain why the total charge of this complex become -4? Do we not count the charge of Ca? and how do I know what charge Fe is since Fe charge can vary....
![**Question:** What is the charge on the complex ion in \( \text{Ca}_2[\text{Fe}(\text{CN})_6]? \)
**Choices:**
1. \(\text{4-}\)
2. \(\text{3-}\)
3. \(\text{2+}\)
4. \(\text{2-}\)
**Correct Answer:** The correct answer is not explicitly indicated in the image provided.
**What was Answered:** You answered \(\text{2+}\), as indicated by the red box around the option.
---
**Explanation of Charge Calculation:**
1. The chemical formula provided is \( \text{Ca}_2[\text{Fe}(\text{CN})_6] \).
2. Calcium (Ca) typically has a charge of \(\text{Ca}^{2+}\).
3. Two calcium ions (\( 2 \times \text{Ca}^{2+} \)) contribute a total of \( 2 \times 2+ = 4+ \).
4. The complex ion \( [\text{Fe}(\text{CN})_6] \) should balance this charge because the compound is neutral overall.
5. If we denote the charge on the complex ion \( [\text{Fe}(\text{CN})_6] \) as \( x \):
\[
2(2+) + x = 0 \implies 4+ + x = 0 \implies x = -4
\]
6. Therefore, the charge on the complex ion in \( \text{Ca}_2[\text{Fe}(\text{CN})_6] \) is \(\text{4-}\).
Hence, the correct answer should be \(\text{4-}\).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe47599a4-201e-4a21-820b-be4e0f71610f%2Fdd4c8e8f-0100-4142-9b33-8638f9d6eb39%2Fytutzbc_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Question:** What is the charge on the complex ion in \( \text{Ca}_2[\text{Fe}(\text{CN})_6]? \)
**Choices:**
1. \(\text{4-}\)
2. \(\text{3-}\)
3. \(\text{2+}\)
4. \(\text{2-}\)
**Correct Answer:** The correct answer is not explicitly indicated in the image provided.
**What was Answered:** You answered \(\text{2+}\), as indicated by the red box around the option.
---
**Explanation of Charge Calculation:**
1. The chemical formula provided is \( \text{Ca}_2[\text{Fe}(\text{CN})_6] \).
2. Calcium (Ca) typically has a charge of \(\text{Ca}^{2+}\).
3. Two calcium ions (\( 2 \times \text{Ca}^{2+} \)) contribute a total of \( 2 \times 2+ = 4+ \).
4. The complex ion \( [\text{Fe}(\text{CN})_6] \) should balance this charge because the compound is neutral overall.
5. If we denote the charge on the complex ion \( [\text{Fe}(\text{CN})_6] \) as \( x \):
\[
2(2+) + x = 0 \implies 4+ + x = 0 \implies x = -4
\]
6. Therefore, the charge on the complex ion in \( \text{Ca}_2[\text{Fe}(\text{CN})_6] \) is \(\text{4-}\).
Hence, the correct answer should be \(\text{4-}\).
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