A lab technologist needs to generate a 160mL phosphate buffer at 0.1M and pH6.8. The technologist has access to a solution of HPO42- at 0.2M and a solution of H2PO4- at 0.3M. The pKa where these forms of phosphate exist in equal measure is at pH7.2. What is the volume of HPO42- required to prepare 160mL of this 0.1M phosphate buffer at pH6.8?
A lab technologist needs to generate a 160mL phosphate buffer at 0.1M and pH6.8. The technologist has access to a solution of HPO42- at 0.2M and a solution of H2PO4- at 0.3M. The pKa where these forms of phosphate exist in equal measure is at pH7.2. What is the volume of HPO42- required to prepare 160mL of this 0.1M phosphate buffer at pH6.8?
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A lab technologist needs to generate a 160mL phosphate buffer at 0.1M and pH6.8. The technologist has access to a solution of HPO42- at 0.2M and a solution of H2PO4- at 0.3M. The pKa where these forms of phosphate exist in equal measure is at pH7.2. What is the volume of HPO42- required to prepare 160mL of this 0.1M phosphate buffer at pH6.8?
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