Water, pH and Macromolecules
Which of the following indicates that the pK of an acid is numerically equal to the pH of the solution when the molar concentration of the acid and its conjugate base are equal?

Haldanes equation
Henderson-Hasselbalch equation
Hardy-Windberg law
Michaelis-Menten equation

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Water, pH and Macromolecules
Buffer solutions

are rarely found in living systems
will always have a pH of 7
tend to maintain a relatively constant pH.
cause a decrease in pH when acids are added to them.

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