Exercise 5.0ml. sample of a pesticide containing chlorine was diluted to 25.0ml. Then nitric acid was added to 10.0ml of this diluted solution to convert all the chlorine into soluble chloride ion. A 50.0ml. 0.125M silver nitrate was added to the sample to precipitate all the chloride. The excess silver nitrate was then titrated with 15.80ml. 0.227M potassium thiocyanate by Volhard's method. 1) Explain how the end point is observed in this titration 2) write the chemical equation of titration 3) Calculate the concentration of chlorine (% w/v) in the pesticide.

Exercise 5.0ml. sample of a pesticide containing chlorine was diluted to 25.0ml. Then nitric acid was added to 10.0ml of this diluted solution to convert all the chlorine into soluble chloride ion. A 50.0ml. 0.125M silver nitrate was added to the sample to precipitate all the chloride. The excess silver nitrate was then titrated with 15.80ml. 0.227M potassium thiocyanate by Volhard's method. 1) Explain how the end point is observed in this titration 2) write the chemical equation of titration 3) Calculate the concentration of chlorine (% w/v) 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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