Chapter 2 Flashcards
(12 cards)
Nonpolar and amphipathic solutes in water interfere with…
hydrogen bonding among water molecules
Nonpolar and amphipathic solutes in water there is an unfavorable change in…
enthalpy and entropy for water
As nonpolar molecules aggregate is a favorable change in…
enthalpy and entropy
What is the hydrophobic effect?
the process of aggregation of nonpolar molecules in water
How are structures that contain amphipathic molecules stabilized?
by the the hydrophobic effect
The pH and the pOH must always add up to…
14
Weak electrolytes dissociate only partially in…
water
The extent of association is determined by…
the acid dissociation constant Ka
The pH of a solution containing a weak acid can be determined when the Ka is…
known
What is the Henderson-Hasselbach equation?
can be used to find the ratio of conjugated base to acid at a specific pH when the pKa of the acid is known
Where is the buffering region?
+/- the pH value
How can we predict the states of a molecule?
H-H equation
