1. The hydrogen sulfide in a 75.0 -g sample of crude petroleum was removed by distillation anduncollected in a solution of CdCl2. The precipitated CdS was then filtered, washed, and ignited toCdSO4. Calculate the percentage of H2S in the sample if 0.117 g of CdSO4 was recovered. 2. A 5.000-g sample of a pesticide was decomposed with metallic sodium in alcohol, and theliberated chloride ion was precipitated as AgCl. Express the results of this analysis in terms ofpercent DDT (C14H•Cls) based on the recoverv of 0.1987 g of A¢CI.

The equivalent of H2S present in petroleum will be equal to the equivalent of CdSO4 recovered.…

1. The hydrogen sulfide in a 75.0 -g sample of crude petroleum was removed by distillation and uncollected in a solution of CdCl2. The precipitated CdS was then filtered, washed, and ignited to CDSO4. Calculate the percentage of H2S in the sample if 0.117 g of CDSO4 was recovered.

1. The hydrogen sulfide in a 75.0 -g sample of crude petroleum was removed by distillation and uncollected in a solution of CdCl2. The precipitated CdS was then filtered, washed, and ignited to CDSO4. Calculate the percentage of H2S in the sample if 0.117 g of CDSO4 was recovered.

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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Question

1. The hydrogen sulfide in a 75.0 -g sample of crude petroleum was removed by distillation and
uncollected in a solution of CdCl2. The precipitated CdS was then filtered, washed, and ignited to
CdSO4. Calculate the percentage of H2S in the sample if 0.117 g of CdSO4 was recovered.

2. A 5.000-g sample of a pesticide was decomposed with metallic sodium in alcohol, and the
liberated chloride ion was precipitated as AgCl. Express the results of this analysis in terms of
percent DDT (C14H•Cls) based on the recoverv of 0.1987 g of A¢CI.

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