A chemical engineer determines the mass percent of iron in an ore sample by converting the Fe to Fe²* in acid and then titrating the Fe²+ with MnO. A 1.2188 g sample was dissolved in acid and then titrated with 33.71 mL of 0.04327 M KMnO4. The balanced equation is SH (aq) + 5Fe (aq) + MnO (ag) → 5Fe³+ (aq) + Mn² (aq) + 4H₂0 (1) Calculate the mass percent of iron in the ore. Be sure your answer has the correct number of significant figures.

A chemical engineer determines the mass percent of iron in an ore sample by converting the Fe to Fe²* in acid and then titrating the Fe²+ with MnO. A 1.2188 g sample was dissolved in acid and then titrated with 33.71 mL of 0.04327 M KMnO4. The balanced equation is SH (aq) + 5Fe (aq) + MnO (ag) → 5Fe³+ (aq) + Mn² (aq) + 4H₂0 (1) Calculate the mass percent of iron in the ore. Be sure your answer has the correct number of significant figures.

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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