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?

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

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Water, pH and Macromolecules
Which of the following statements about covalently bonded molecules is false?

Noncovalent bonds may also be present, especially if the molecule is large
Electrons are shared between the atoms that make up the molecule
Such molecules often result from the interaction of ionized atoms
The chemical bonds that hold the molecule together are relatively strong

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Water, pH and Macromolecules
Which of the following statements about water is correct?

All of these
It is critical for many of the chemical processes found in living systems
Nonpolar substances like oils are not soluble in it
Polar substances that can form hydrogen bonds will dissolve in it

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