Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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The concentration of arsenic in an insecticide can be determined gravimetrically by precipitating it as MgNH4AsO4. The
precipitate is ignited and weighed as Mg2As2O7. Determine the %w/w As2O3 in a 1.627-g sample of insecticide that
yields 106.5 mg of Mg2As2O7.
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