4.88. A quality control technician needs to determine the percentage of arsenic (As) in a particular pesticide. The pesticide is dissolved and all of the arsenic present is converted to arsenate ions (AsO4³-). Then the amount of AsO,³- is determined by titrating with a solution containing silver ions (Ag†). The silver reacts with the arsenate according to the following net ionic equation: 3 Ag* (aq) + AsO4 (aq) → Ag3 AsO4(s) When a 1.22-g sample of pesticide was analyzed this way, it required 25.0 mL of 0.102 M Ag* solution to precipitate all of the AsO,.What was the mass percentage of arsenic in the pesticide?

4.88. A quality control technician needs to determine the percentage of arsenic (As) in a particular pesticide. The pesticide is dissolved and all of the arsenic present is converted to arsenate ions (AsO4³-). Then the amount of AsO,³- is determined by titrating with a solution containing silver ions (Ag†). The silver reacts with the arsenate according to the following net ionic equation: 3 Ag* (aq) + AsO4 (aq) → Ag3 AsO4(s) When a 1.22-g sample of pesticide was analyzed this way, it required 25.0 mL of 0.102 M Ag* solution to precipitate all of the AsO,.What was the mass percentage of arsenic in the pesticide?

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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