The arsenic in a 1.22-g sample of a pesticide was converted toAsO43- by suitable chemical treatment. It was then titratedusing Ag+ to form Ag3AsO4 as a precipitate. (a) What is theoxidation state of As in AsO43-? (b) Name Ag3AsO4 by analogyto the corresponding compound containing phosphorusin place of arsenic. (c) If it took 25.0 mL of 0.102 M Ag+to reach the equivalence point in this titration, what is themass percentage of arsenic in the pesticide?
The arsenic in a 1.22-g sample of a pesticide was converted toAsO43- by suitable chemical treatment. It was then titratedusing Ag+ to form Ag3AsO4 as a precipitate. (a) What is theoxidation state of As in AsO43-? (b) Name Ag3AsO4 by analogyto the corresponding compound containing phosphorusin place of arsenic. (c) If it took 25.0 mL of 0.102 M Ag+to reach the equivalence point in this titration, what is themass percentage of arsenic in the pesticide?
Chapter20: Applications Of Oxidation/reduction Titrations
Section: Chapter Questions
Problem 20.26QAP
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Question
The arsenic in a 1.22-g sample of a pesticide was converted to
AsO4
3- by suitable chemical treatment. It was then titrated
using Ag+ to form Ag3AsO4 as a precipitate. (a) What is the
oxidation state of As in AsO4
3-? (b) Name Ag3AsO4 by analogy
to the corresponding compound containing phosphorus
in place of arsenic. (c) If it took 25.0 mL of 0.102 M Ag+
to reach the equivalence point in this titration, what is the
mass percentage of arsenic in the pesticide?
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