the ksp for the Fe(OH)3 is 4.0x10^-3810. According to the background information the Group III reagent is to be buffered at pH 10 to procuce a nignenough (OH- to precipitate the Group III ions, but not high enough to precipitate the group IV ions.a. If a solution contained Fe" ions at a concentration of 0.1 M, what pH would have to be reached toprecipitate 99% of the Fe" as Fe(OH)s? Hint: Determine (Fe") after precipitation and use it and the Keo todetermine (OHb. If a solution contained Ni* ions at a concentration of 0.1 M, what pH would have to be reached toprecipitate 99% of the Ni as Ni(OH)2?c. Based on your answers to a. and b., if enough OH- was added to reach a pH of 10, would the Fe3 beselectively precipitated, leaving the Ni2 in solution? Explain?No

Answer- Data given- Fe3+ concentration is 0.1 N, ksp for Fe(OH)3 is 4.0x 10-38.

10. According to the background information the Group III reagent is to be buffered at pH 10 to proouce a nign enough (OH) to precipitate the Group II ions, but not high enough to precipitate the group IV ions. a. If a solution contained Fe ions at a concentration of 0.1 M, what pH would have to be reached to precipitate 99% of the Fe" as Fe(OH)»? Hint: Determine (Fe") after precipitation and use it and the Kep to determine (OH) If a solution contained NP ions at a concentration of 0.1 M, what pH would have to be reached to cipitate 99% of the Ni? as Ni(OH)2?

10. According to the background information the Group III reagent is to be buffered at pH 10 to proouce a nign enough (OH) to precipitate the Group II ions, but not high enough to precipitate the group IV ions. a. If a solution contained Fe ions at a concentration of 0.1 M, what pH would have to be reached to precipitate 99% of the Fe" as Fe(OH)»? Hint: Determine (Fe") after precipitation and use it and the Kep to determine (OH) If a solution contained NP ions at a concentration of 0.1 M, what pH would have to be reached to cipitate 99% of the Ni? as Ni(OH)2?

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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