A sample of iron weighing 15.0 g was heated with potassium chlorate (KCIO3) in an evacuated container. The oxygen generated from the decomposition of KCIO3 converted some of the Fe to Fe203. If the combined mass of Fe and Fe203 was 17.9 g, calculate the mass of Fe203 formed and the mass of KCIO3 decomposed. Please show your work for credit and comment on another students such as asking a question or pointing the student in the right direction.

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...
icon
Related questions
Question
**Chemical Reaction Analysis Problem**

**Problem Statement:**

A sample of iron weighing 15.0 g was heated with potassium chlorate (KClO₃) in an evacuated container. The oxygen generated from the decomposition of KClO₃ converted some of the Fe to Fe₂O₃. If the combined mass of Fe and Fe₂O₃ was 17.9 g, calculate the mass of Fe₂O₃ formed and the mass of KClO₃ decomposed. Please show your work for credit and comment on other students such as asking a question or pointing the student in the right direction.

**Explanation:**

This problem involves a chemical reaction between iron and the oxygen produced from potassium chlorate decomposition. The task requires performing stoichiometric calculations to determine the quantities of iron(III) oxide (Fe₂O₃) formed and the potassium chlorate (KClO₃) decomposed. 

Here's the step-by-step approach:

1. **Understand the Reactions:**
   - Decomposition of potassium chlorate:
     \[
     2 \text{KClO}_3 \rightarrow 2 \text{KCl} + 3 \text{O}_2
     \]
   - Formation of iron(III) oxide:
     \[
     4 \text{Fe} + 3 \text{O}_2 \rightarrow 2 \text{Fe}_2\text{O}_3
     \]

2. **Given Data:**
   - Initial mass of iron (Fe) = 15.0 g.
   - Combined mass of Fe and Fe₂O₃ = 17.9 g.

3. **Determine Mass of Fe₂O₃ Formed:**
   - Let the mass of Fe₂O₃ formed be \( x \).
   - The remaining mass should be iron: \( 15.0 \text{ g} - ( \text{moles of Fe used for } x \text{ g of Fe₂O₃}) \).

4. **Mass Balance Equation:**
   - \( 15.0 \text{ g (Fe)} - \text{moles of Fe used for } x = 17.9 \text{ g} \)

5. **Convert Masses to Moles:**
   - Use molar masses of Fe (55.85 g/mol) and Fe₂O
Transcribed Image Text:**Chemical Reaction Analysis Problem** **Problem Statement:** A sample of iron weighing 15.0 g was heated with potassium chlorate (KClO₃) in an evacuated container. The oxygen generated from the decomposition of KClO₃ converted some of the Fe to Fe₂O₃. If the combined mass of Fe and Fe₂O₃ was 17.9 g, calculate the mass of Fe₂O₃ formed and the mass of KClO₃ decomposed. Please show your work for credit and comment on other students such as asking a question or pointing the student in the right direction. **Explanation:** This problem involves a chemical reaction between iron and the oxygen produced from potassium chlorate decomposition. The task requires performing stoichiometric calculations to determine the quantities of iron(III) oxide (Fe₂O₃) formed and the potassium chlorate (KClO₃) decomposed. Here's the step-by-step approach: 1. **Understand the Reactions:** - Decomposition of potassium chlorate: \[ 2 \text{KClO}_3 \rightarrow 2 \text{KCl} + 3 \text{O}_2 \] - Formation of iron(III) oxide: \[ 4 \text{Fe} + 3 \text{O}_2 \rightarrow 2 \text{Fe}_2\text{O}_3 \] 2. **Given Data:** - Initial mass of iron (Fe) = 15.0 g. - Combined mass of Fe and Fe₂O₃ = 17.9 g. 3. **Determine Mass of Fe₂O₃ Formed:** - Let the mass of Fe₂O₃ formed be \( x \). - The remaining mass should be iron: \( 15.0 \text{ g} - ( \text{moles of Fe used for } x \text{ g of Fe₂O₃}) \). 4. **Mass Balance Equation:** - \( 15.0 \text{ g (Fe)} - \text{moles of Fe used for } x = 17.9 \text{ g} \) 5. **Convert Masses to Moles:** - Use molar masses of Fe (55.85 g/mol) and Fe₂O
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Quantum Mechanical Model of Atom
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY