The arsenic in a 1.010 g sample of a pesticide was converted to H3ASO4 by suitable treatment. The acid was then neutralized, and exactly 40.00 mL of 0.06222M AgNO3 was added to precipitate the arsenic quantitatively as Ag;AsO4. The excess Ag in the filtrate and in the washings from the precipitate was titrated with 10.76 mL of 0.1000MKSCN; the reaction was Ag* + SCN→ AGSCN(s) Calculate the percent AsO3 in the sample.

The arsenic in a 1.010 g sample of a pesticide was converted to H3ASO4 by suitable treatment. The acid was then neutralized, and exactly 40.00 mL of 0.06222M AgNO3 was added to precipitate the arsenic quantitatively as Ag;AsO4. The excess Ag in the filtrate and in the washings from the precipitate was titrated with 10.76 mL of 0.1000MKSCN; the reaction was Ag* + SCN→ AGSCN(s) Calculate the percent AsO3 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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