Biochemistry: Concepts and Connections (2nd Edition)
Biochemistry: Concepts and Connections (2nd Edition)
2nd Edition
ISBN: 9780134641621
Author: Dean R. Appling, Spencer J. Anthony-Cahill, Christopher K. Mathews
Publisher: PEARSON
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Chapter 2, Problem 8P

What is the pH of the following buffer mixtures?
a. 100 mL 1 M acetic acid plus 100 mL 0.5 M sodium acetate
b. 250 mL 0.3 M phosphoric acid plus 250 mL 0.8 M KH2PO4

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What is the pH of the following buffer mixtures?                                            (a) 100 mL 1 M acetic acid plus 100 mL 0.5 M sodium acetate                             (b) 250 mL 0.3 M phosphoric acid plus 250 mL 0.8 M KH2PO4
A buffer contains 0.015 mol of lactic acid (pK₁ = 3.86) and 0.080 mol of sodium lactate per liter. H₂C OH Lactic acid OH Calculate the pH of the buffer. H₂C. Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of the buffer. O OH Sodium lactate Calculate the change in pH after adding 9.0 mL of 0.10 M HCl to 1.0 L of pure water. O Na+ buffer pH: buffer pH change: water pH change: units units
What happened to the pH when the cola and borax solution was added to the water? Explain
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