Water, pH and Macromolecules
The effectiveness or capacity of a buffer solution can be affected by

molar concentration of the buffer components
concentration of the conjugate base to the weak acid
both (a) and (b)
temperature of buffer components

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

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

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

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

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