Which of the following indicates that the pK of an acid is numerically equal to

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Question
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?
Options
A. Michaelis-Menten equation
B. Haldanes equation
C. Henderson-Hasselbalch equation
D. Hardy-Windberg law

Correct Answer

Henderson-Hasselbalch equation

Water, pH and Macromolecules problems

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2. Which of the following statements about covalently bonded molecules is false?
Options
A. Electrons are shared between the atoms that make up the molecule
B. Noncovalent bonds may also be present, especially if the molecule is large
C. Such molecules often result from the interaction of ionized atoms
D. The chemical bonds that hold the molecule together are relatively strong

3. The lone pair electrons on oxygen in a H20 molecule
Options
A. carry a partial positive charge
B. are not important for the properties of water
C. carry a partial negative charge
D. form covalent bonds in ice

4. Hydrogen bonds and hydrophilic interactions are types of
Options
A. weak chemical bonds that hold together the atoms within a molecule
B. strong chemical bonds that hold together the atoms within a molecule
C. weak chemical bonds that link together separate molecules
D. strong chemical bonds that link together separate molecules

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