QUESTION 8 The following reagents are available in the laboratory: 0.1M H3PO4; 0.1 M CH3COOH, 0.1M CH3COONa, 0.1M NaH2PO4, 0.1M Na2HPO4, 0.1M Na3PO4 Choose from the following buffer: Primary phosphate, pKa = 2.30 Secondary phosphate, pKa = 7.20 Tertiary phosphate, pKa = 12.10 Acetate, pKa = 4.76 Tris, pKa = 8.08 To prepare a 800 mL, 0.1M buffer solution, pH 7.4. What is the volume in mL of acid?

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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QUESTION 8
The following reagents are available in the laboratory:
0.1M H3PO4; 0.1 M CH3COOH, 0.1M CH3COONa, 0.1M NaH₂PO4, 0.1M Na2HPO4, 0.1M Na3PO4, 0.1M NaOH, 0.1M HCI
Choose from the following buffer:
Primary phosphate, pKa = 2.30
Secondary phosphate, pKa = 7.20
Tertiary phosphate, pKa = 12.10
Acetate, pKa = 4.76
Tris, pka = 8.08
To prepare a 800 mL, 0.1M buffer solution, pH 7.4. What is the volume in mL of acid?
Transcribed Image Text:QUESTION 8 The following reagents are available in the laboratory: 0.1M H3PO4; 0.1 M CH3COOH, 0.1M CH3COONa, 0.1M NaH₂PO4, 0.1M Na2HPO4, 0.1M Na3PO4, 0.1M NaOH, 0.1M HCI Choose from the following buffer: Primary phosphate, pKa = 2.30 Secondary phosphate, pKa = 7.20 Tertiary phosphate, pKa = 12.10 Acetate, pKa = 4.76 Tris, pka = 8.08 To prepare a 800 mL, 0.1M buffer solution, pH 7.4. What is the volume in mL of acid?
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