Iron(III) is best determined by addition of excess EDTA, followed by back-titration with a metal ion that reacts rapidly with EDTA. A 700.0-mg sample is dissolved, 20.00 mL of 0.0500M EDTA is added, and the excess EDTA is titrated with 5.08 mL of 0.0420M conneril) Calculate the percentage of Fe,0, in the sample. A 377.0-mg sample of As,0, is dissolved to give two molecules of H,AsO, per one molecule of As,0, and is oxidized to H,AsO, with 31.48 mL of 0.0502M (0.1040N) iodine (1,) Calculate the percentage of As,O, (form wt = 197.84) in the sample.

Iron(III) is best determined by addition of excess EDTA, followed by back-titration with a metal ion that reacts rapidly with EDTA. A 700.0-mg sample is dissolved, 20.00 mL of 0.0500M EDTA is added, and the excess EDTA is titrated with 5.08 mL of 0.0420M conneril) Calculate the percentage of Fe,0, in the sample. A 377.0-mg sample of As,0, is dissolved to give two molecules of H,AsO, per one molecule of As,0, and is oxidized to H,AsO, with 31.48 mL of 0.0502M (0.1040N) iodine (1,) Calculate the percentage of As,O, (form wt = 197.84) in the sample.

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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