Answered: A solution is known to contain 0.0150 M…

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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A solution is known to contain 0.0150 M Ce(SO4)32-. When 25 ml of this solution is titrated, 23.44 mL of 0.032 M FeSO4 solution is required to reach the equivalence point. The reaction of the two substances produces Fe3+ as one of the products. Determine the oxidation number of Ce after the reaction.

Expert Solution

Step 1 Brief description of equivalence point in a redox titration

For a redox titration, the number of equivalents become equal at the equivalent point ,i.e., the oxidant as well as reductant has the same number of equivalents at the equivalence point.

The formula for calculation of number of equivalents is given by ;

No. of equivalents = Molarity $\times$ Volume $\times$ n-factor

Where, n-factor is the change in oxidation state of the species.

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