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A solution containing both Mn2+ and Cd²+ at 0.10M each is saturated with H2S gas at 25ºC and 1 atm pressure. The [H+] is adjusted with HCl to 0.30M. a) Will the sulfides of these metals precipitate under these conditions? b) Calculate the maximum concentration of Cd2+ and Mn²+ that can remain in solution. Ksp for MnS = 1.0 x 10-13 ; Ksp for CdS = 1.0 x 10-26 %3D In a saturated solution of H2S at 1 atm and 25°C, [H2S] = 0.10M %3D Ka1(H2S) = 5.7 x 10-8 ; Ka2 = 1.3 x 10-13

A solution containing both Mn2+ and Cd²+ at 0.10M each is saturated with H2S gas at 25ºC and 1 atm pressure. The [H+] is adjusted with HCl to 0.30M. a) Will the sulfides of these metals precipitate under these conditions? b) Calculate the maximum concentration of Cd2+ and Mn²+ that can remain in solution. Ksp for MnS = 1.0 x 10-13 ; Ksp for CdS = 1.0 x 10-26 %3D In a saturated solution of H2S at 1 atm and 25°C, [H2S] = 0.10M %3D Ka1(H2S) = 5.7 x 10-8 ; Ka2 = 1.3 x 10-13

Chemistry
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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A solution containing both Mn2+ and Cd²+ at 0.10M each is saturated with H2S gas at 25ºC and 1 atm pressure. The [H+] is adjusted with HCl to 0.30M. a) Will the sulfides of these metals precipitate under these conditions? b) Calculate the maximum concentration of Cd2+ and Mn²+ that can remain in solution. Ksp for MnS = 1.0 x 10-13 ; Ksp for CdS = 1.0 x 10-26 %3D In a saturated solution of H2S at 1 atm and 25°C, [H2S] = 0.10M %3D Ka1(H2S) = 5.7 x 10-8 ; Ka2 = 1.3 x 10-13
Transcribed Image Text:A solution containing both Mn2+ and Cd²+ at 0.10M each is saturated with H2S gas at 25ºC and 1 atm pressure. The [H+] is adjusted with HCl to 0.30M. a) Will the sulfides of these metals precipitate under these conditions? b) Calculate the maximum concentration of Cd2+ and Mn²+ that can remain in solution. Ksp for MnS = 1.0 x 10-13 ; Ksp for CdS = 1.0 x 10-26 %3D In a saturated solution of H2S at 1 atm and 25°C, [H2S] = 0.10M %3D Ka1(H2S) = 5.7 x 10-8 ; Ka2 = 1.3 x 10-13
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