A1.223 g sample containing arsenic (As) was converted to H3AS0, by suitable treatment. 40.00 ml. of 0.07891 M AGNO3 was thenadded to the acid to precipitate arsenic quantitatively as AgAs01. The excess AgNO3was back-titrated with 11.27 ml. of 0.1000 MKSCN ; the Reacti on was Cal culate the percent of As,03 in the sample.1. O5.472. O2.233. O11.154. O66.925. O33.45

The question is based on the concept of quantitative analysis. We have to calculate percentage…

A 1.223 g sample containing arsenic (As) was converted to H3As0, by suitable treatment. 40.00 ml. of 0.07891 M AGNO3 was then added to the acid to precipitate arsenic quantitatively as AggAso1. The excess AgNO3was back titrated with 11.27 mL of 0.1000 M KSCN ; the Reacti on was Calcul ate the percent of As,03 in the sample. 1. O5.47 2. O2.23 3. O11.15 4. O 66.92 5. O33.45

A 1.223 g sample containing arsenic (As) was converted to H3As0, by suitable treatment. 40.00 ml. of 0.07891 M AGNO3 was then added to the acid to precipitate arsenic quantitatively as AggAso1. The excess AgNO3was back titrated with 11.27 mL of 0.1000 M KSCN ; the Reacti on was Calcul ate the percent of As,03 in the sample. 1. O5.47 2. O2.23 3. O11.15 4. O 66.92 5. O33.45

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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