The Fe2+ (55.845 g/mol) content of a 2.433 g steel sample dissolved in 50.00 mL of an acidic solution was determined by tiration with a standardized 0.120 M potassium permanganate (KMNO,, 158.034 g/mol) solution. The titration required 31.06 mL to reach the end point. What is the concentration of iron in the steel sample? Express your answer as grams of Fe per gram of steel. MnO, + 8 H* + 5 Fe2+ = Mn²+ + 5 Fe3+ + 4 H,O concentration: g Fe/g ste

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
The Fe²⁺ (55.845 g/mol) content of a 2.433 g steel sample dissolved in 50.00 mL of an acidic solution was determined by titration with a standardized 0.120 M potassium permanganate (KMnO₄, 158.034 g/mol) solution. The titration required 31.06 mL to reach the end point. What is the concentration of iron in the steel sample? Express your answer as grams of Fe per gram of steel.

Reaction:
\[ \text{MnO}_4^- + 8 \text{H}^+ + 5 \text{Fe}^{2+} \rightarrow \text{Mn}^{2+} + 5 \text{Fe}^{3+} + 4 \text{H}_2\text{O} \]

Concentration: [___________] g Fe/g steel

Instructions:
- Calculate the number of moles of KMnO₄ used in the titration.
- Use the balanced chemical equation to find the moles of Fe²⁺.
- Convert moles of Fe²⁺ to grams.
- Calculate the concentration of Fe in the steel as grams of Fe per gram of steel.
Transcribed Image Text:The Fe²⁺ (55.845 g/mol) content of a 2.433 g steel sample dissolved in 50.00 mL of an acidic solution was determined by titration with a standardized 0.120 M potassium permanganate (KMnO₄, 158.034 g/mol) solution. The titration required 31.06 mL to reach the end point. What is the concentration of iron in the steel sample? Express your answer as grams of Fe per gram of steel. Reaction: \[ \text{MnO}_4^- + 8 \text{H}^+ + 5 \text{Fe}^{2+} \rightarrow \text{Mn}^{2+} + 5 \text{Fe}^{3+} + 4 \text{H}_2\text{O} \] Concentration: [___________] g Fe/g steel Instructions: - Calculate the number of moles of KMnO₄ used in the titration. - Use the balanced chemical equation to find the moles of Fe²⁺. - Convert moles of Fe²⁺ to grams. - Calculate the concentration of Fe in the steel as grams of Fe per gram of steel.
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
Balancing of Redox Reactions
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