-14°C 5) Design: The iron(II) solution is titrated to iron (III) with a standard cerium (IV) ion solution which is reduced to cerium (III). The indicator shows, as the endpoint, a sharp colour change from red to pale blue. Evidence: Titration of 25.0 mL of Fe²+ (aq) with 0.125 mol/L Ce+ (aq). Trial Final burette reading (mL) Initial burette reading (mL) Volume of Ce4+ = 1 15.7 0.6 2 30.7 15.7 3 45.6 30.7 4 40.2 25.3 (Answer: 14.975) Problem: What is the amount concentration of iron (II) ionis in a solution obtained in an iron ore analysis? (Answer: 7.49 x 10¹² M) ENG £ 1 0 + O E 5:42 PM

-14°C 5) Design: The iron(II) solution is titrated to iron (III) with a standard cerium (IV) ion solution which is reduced to cerium (III). The indicator shows, as the endpoint, a sharp colour change from red to pale blue. Evidence: Titration of 25.0 mL of Fe²+ (aq) with 0.125 mol/L Ce+ (aq). Trial Final burette reading (mL) Initial burette reading (mL) Volume of Ce4+ = 1 15.7 0.6 2 30.7 15.7 3 45.6 30.7 4 40.2 25.3 (Answer: 14.975) Problem: What is the amount concentration of iron (II) ionis in a solution obtained in an iron ore analysis? (Answer: 7.49 x 10¹² M) ENG £ 1 0 + O E 5:42 PM

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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