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Water, pH and Macromolecules

Water, pH and Macromolecules
What is the concentration, in moles/liter, of the hydrogen ion, if pH of a solution is 7?

7 x 10-7
7
1 x 10-7
5 x 10-7

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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?

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

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Water, pH and Macromolecules
Which of the following alcohols would be most soluble in water?

butanol
ethanol
methanol
octanol

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Water, pH and Macromolecules
The elements oxygen, nitrogen, and carbon

contain protons and neutrons in their atomic nuclei
are common elements in the molecules that make up living organisms
can all form covalent bonds with other elements
All of these

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Water, pH and Macromolecules
A Bronsted acid becomes __________ upon losing a proton.

its conjugate base
a hydronium ion
its conjugate acid
highly reactive

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Water, pH and Macromolecules
Molecules in which the atoms are held together by __________ bonds have the strongest chemical linkages.

hydrogen
covalent
ionic
noncovalent

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