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2. To make a buffer solution of pH = 12.5, what chemicals you should choose if you have pure compounds of H3PO4, NaH2PO4, Na₂HPO4, Na3PO4? The Ka data are listed below. List three methods to make this buffer if you also have 1M HCl and 1M NaOH. H₂PO4 H₂PO 7.5 x 10-3 6.2 x 10-8 HPO 4.8 x 10-13

2. To make a buffer solution of pH = 12.5, what chemicals you should choose if you have pure compounds of H3PO4, NaH2PO4, Na₂HPO4, Na3PO4? The Ka data are listed below. List three methods to make this buffer if you also have 1M HCl and 1M NaOH. H₂PO4 H₂PO 7.5 x 10-3 6.2 x 10-8 HPO 4.8 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
Chapter15: Acid-base Equilibria
Section: Chapter Questions
Problem 2ALQ: A friend asks the following: Consider a buffered solution made up of the weak acid HA and its salt...
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2. To make a buffer solution of pH = 12.5, what chemicals you should choose if you have pure compounds of H3PO4, NaH2PO4, Na₂HPO4, Na3PO4? The Ka data are listed below. List three methods to make this buffer if you also have 1M HCl and 1M NaOH. H₂PO4 H₂PO 7.5 x 10-3 6.2 x 10-8 HPO 4.8 x 10-13
Transcribed Image Text:2. To make a buffer solution of pH = 12.5, what chemicals you should choose if you have pure compounds of H3PO4, NaH2PO4, Na₂HPO4, Na3PO4? The Ka data are listed below. List three methods to make this buffer if you also have 1M HCl and 1M NaOH. H₂PO4 H₂PO 7.5 x 10-3 6.2 x 10-8 HPO 4.8 x 10-13
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