You want to prepare 1.00 L of a buffer solution with a pH of 3.5.  You are given an 0.45 M solution of nitrous acid, HNO2, and an 0.68 M solution of NaOH.  What volume of each of these solutions must be mixed in order to get the desired buffer solution?  Use the simultaneous equations method to solve this problem.  If the buffer solution prepared in a. also contained ~10-6M Ni2+ and ~10-6 M Pb2+ , could those metal ions be separated from each other by saturating the solution with H2S?  Explain your answer by showing the necessary calculations.

Chemistry
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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
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You want to prepare 1.00 L of a buffer solution with a pH of 3.5.  You are given an 0.45 M solution of nitrous acid, HNO2, and an 0.68 M solution of NaOH.  What volume of each of these solutions must be mixed in order to get the desired buffer solution?  Use the simultaneous equations method to solve this problem.

 If the buffer solution prepared in a. also contained ~10-6M Ni2+ and ~10-6 M Pb2+ , could those metal ions be separated from each other by saturating the solution with H2S?  Explain your answer by showing the necessary calculations.

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