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hosphoric acid is a triprotic acid with the pK, values pKa1 = 2.148, pK2 = 7.198, and pK3 = 12.375. ou wish to prepare 1.000 L of a 0.0100 M phosphate buffer at pH 7.700. To do this, you choose to mix the two salt forms volved in the second ionization, NaH, PO, and Na, HPO,. in a 1.000 L volumetric flask and add water to the mark. What ass of cach salt will you add to the mixture? nass NaH,PO, = nass Na, HPO, = Vhat other combination of phosphoric acid and its salts could be mixed to prepare this buffer?

hosphoric acid is a triprotic acid with the pK, values pKa1 = 2.148, pK2 = 7.198, and pK3 = 12.375. ou wish to prepare 1.000 L of a 0.0100 M phosphate buffer at pH 7.700. To do this, you choose to mix the two salt forms volved in the second ionization, NaH, PO, and Na, HPO,. in a 1.000 L volumetric flask and add water to the mark. What ass of cach salt will you add to the mixture? nass NaH,PO, = nass Na, HPO, = Vhat other combination of phosphoric acid and its salts could be mixed to prepare this buffer?

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
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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Phosphoric acid is a triprotic acid with the pKa values pKaj = 2.148, pK2 = 7.198, and pK3 = 12.375. You wish to prepare 1.000 L of a 0.0100 M phosphate buffer at pH 7.700. To do this, you choose to mix the two salt forms involved in the second ionization, NaH, PO, and Na, HPO,, in a 1.000 L volumetric flask and add water to the mark. What mass of cach salt will you add to the mixture? mass NaH,PO, = mass Na, HPO, What other combination of phosphoric acid and its salts could be mixed to prepare this buffer? H,PO, and Na, PO, Na, HPO, and Na, PO, NaH, PO, and Na, PO, H;PO, and NaH, PO, H,PO, and Na, HPO,
Transcribed Image Text:Phosphoric acid is a triprotic acid with the pKa values pKaj = 2.148, pK2 = 7.198, and pK3 = 12.375. You wish to prepare 1.000 L of a 0.0100 M phosphate buffer at pH 7.700. To do this, you choose to mix the two salt forms involved in the second ionization, NaH, PO, and Na, HPO,, in a 1.000 L volumetric flask and add water to the mark. What mass of cach salt will you add to the mixture? mass NaH,PO, = mass Na, HPO, What other combination of phosphoric acid and its salts could be mixed to prepare this buffer? H,PO, and Na, PO, Na, HPO, and Na, PO, NaH, PO, and Na, PO, H;PO, and NaH, PO, H,PO, and Na, HPO,
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