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The concentration of arsenic is determined gravimetrically in an insecticide by precipitating it as MGNH4ASO4.The precipitate is ignited and weighed 319.5 mg as Mg2As207 (310.45 g/mol). Determine the %As203 (197.84 g/mol) as w/w in a 1.627g sample: a. 8.34% b. 16.7% c. 12.5% d. 4.17% е. 2.09%

The concentration of arsenic is determined gravimetrically in an insecticide by precipitating it as MGNH4ASO4.The precipitate is ignited and weighed 319.5 mg as Mg2As207 (310.45 g/mol). Determine the %As203 (197.84 g/mol) as w/w in a 1.627g sample: a. 8.34% b. 16.7% c. 12.5% d. 4.17% е. 2.09%

Chemistry
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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The concentration of arsenic is determined gravimetrically in an insecticide by precipitating it as MgNH4AsO4. The precipitate is ignited and weighed 319.5 mg as Mg2As207 (310.45 g/mol). Determine the %As203 (197.84 g/mol) as w/w in a 1.627g sample: a. 8.34% b. 16.7% с. 12.5% d. 4.17% е. 2.09%
Transcribed Image Text:The concentration of arsenic is determined gravimetrically in an insecticide by precipitating it as MgNH4AsO4. The precipitate is ignited and weighed 319.5 mg as Mg2As207 (310.45 g/mol). Determine the %As203 (197.84 g/mol) as w/w in a 1.627g sample: a. 8.34% b. 16.7% с. 12.5% d. 4.17% е. 2.09%
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