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2. The hydrogen sulfide, H2S, in a 75.0-g sample of crude petroleum was removed by distillation and collected in a solution of CdCl2 to precipitate CdS, The precipitate was then filtered, and ignited to form CdSO4. In the process, 0.117 g of CdSO4 was recovered. a. How many moles of CdSO4 (208.47 g/mol) was recovered? b. From your answer in a, how many moles of Cd$ was precipitated? c. From your answer in b, how many moles of H2S is present in the crude petroleum? d. From your answer in c, how many grams of H2S (34 g/mol) is present in the crude petroleum? What percentage of H2S is in the crude petroleunm?

2. The hydrogen sulfide, H2S, in a 75.0-g sample of crude petroleum was removed by distillation and collected in a solution of CdCl2 to precipitate CdS, The precipitate was then filtered, and ignited to form CdSO4. In the process, 0.117 g of CdSO4 was recovered. a. How many moles of CdSO4 (208.47 g/mol) was recovered? b. From your answer in a, how many moles of Cd$ was precipitated? c. From your answer in b, how many moles of H2S is present in the crude petroleum? d. From your answer in c, how many grams of H2S (34 g/mol) is present in the crude petroleum? What percentage of H2S is in the crude petroleunm?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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2. The hydrogen sulfide, H2S, in a 75.0-g sample of crude petroleum was removed by distillation and collected in a solution of CdCl2 to precipitate CdS, The precipitate was then filtered, and ignited to form CdSO4. In the process, 0.117 g of CdSO4 was recovered. a. How many moles of CdSO4 (208.47 g/mol) was recovered? b. From your answer in a, how many moles of CdS was precipitated? c. From your answer in b, how many moles of H2S is present in the crude petroleum? d. From your answer in c, how many grams of H2S (34 g/mol) is present in the crude petroleum? e. What percentage of H2S is in the crude petroleum?
Transcribed Image Text:2. The hydrogen sulfide, H2S, in a 75.0-g sample of crude petroleum was removed by distillation and collected in a solution of CdCl2 to precipitate CdS, The precipitate was then filtered, and ignited to form CdSO4. In the process, 0.117 g of CdSO4 was recovered. a. How many moles of CdSO4 (208.47 g/mol) was recovered? b. From your answer in a, how many moles of CdS was precipitated? c. From your answer in b, how many moles of H2S is present in the crude petroleum? d. From your answer in c, how many grams of H2S (34 g/mol) is present in the crude petroleum? e. What percentage of H2S is in the crude petroleum?
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