ch. 8 Flashcards
1
Q
buffer solutions
A
resist change in pH when small amounts of strong acid or strong base
1. weak acid/base with its conjugate
2
Q
what happens to Ka when a salt is added to solution
A
nothing; Ka is constant as long as temperature doesn’t change
3
Q
types of equations/reaction for strong acids/bases
A
hard arrows
product is the major species
dissociates completely, reverse reaction doesn’t occur
4
Q
type of equation/reaction for weak acid/base
A
reactant is major species
equilibrium expression
doesn’t dissociate completely
5
Q
what to do for buffer solution problems
A
do ICE table
6
Q
strong something + buffer solution
A
SRF–> ICE
7
Q
strong acid + strong base
A
SRF
stoichiometry problem
pH@ equivalence point = 7
8
Q
weak + strong
A
first do SRF then ICE
9
Q
@ half-equivalence point…
A
[HA]=[A-]
pH=pKa
