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
Michaelis-Menten equation
Hardy-Windberg law

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Water, pH and Macromolecules
Which of the following character does not apply to water?

The water molecule is asymmetric
The water molecule readily forms hydrophobic interactions
The covalent bonds in water are highly polarized
All three atoms in the water molecule readily form hydrogen bonds

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Water, pH and Macromolecules
Buffer solutions

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

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