3. If you didn't have a pH meter, how would you make 1.00 L of 40.0 mM potassium phosphate buffer at pH 6.96, given ONLY potassium phosphate monobasic (KH₂PO4) and potassium phosphate dibasic (K₂HPO4)? These are the only two chemical available -no strong acid or base are needed. Include details such as masses and when/how you would bring the volume up to 1L. Show your calculations. Use pka2=7.20 for phosphoric acid.

3. If you didn't have a pH meter, how would you make 1.00 L of 40.0 mM potassium phosphate buffer at pH 6.96, given ONLY potassium phosphate monobasic (KH₂PO4) and potassium phosphate dibasic (K₂HPO4)? These are the only two chemical available -no strong acid or base are needed. Include details such as masses and when/how you would bring the volume up to 1L. Show your calculations. Use pka2=7.20 for phosphoric acid.

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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Question

3. If you didn't have a pH meter, how would you make 1.00 L of 40.0 mM potassium phosphate buffer
at pH 6.96, given ONLY potassium phosphate monobasic (KH₂PO4) and potassium phosphate dibasic
(K₂HPO4)? These are the only two chemical available -no strong acid or base are needed. Include details
such as masses and when/how you would bring the volume up to 1L. Show your calculations. Use
pka2=7.20 for phosphoric acid.

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Step 4: Calculate mass of basic component

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