CH 15 equilibries
:
: of other Reutions
.
1. Define Ksp and be able to write an equation for Ksp for any ionic compound
Ksp (Solubility product constant) equilibrium expression : for the dissolution of a salt Cionic compond) into its (ag) ions.
· Nothing is completely insoluble, SALT
↳
TaA" (19)
not included
+ bB- (aq)
just very little dissolves >
- small - little amount of ions
(Al)"/BJ
"
Ksp =
lage -a lot
>
- Of in o
S(Molar Solubility) solubility :
↳ concentrations at Ksp
in Units of (mol/L)
We the Min to begin to form .
CIPITATE
2. Relate Ksp to equilibrium concentration of ions
:Ex
(S) related to (Ksp) MglOH (s)My(UG LOC
/
>
-
+
OM OM
+ S + 25
25 e](s)
* To compare solubilities of different componds (by comparing ksp values)
: -
componds MusT have the Edissociation stricione fuy
maconte
CaFc
201- Go stoichemetry 3
= 2F- comparation layer kso
-
+(a2 + + :
,
+
5
Eksp expression larger S
in terms of s
((S][2532)
↳ When different :
Solve for S (sorbility
ksp has only 1 value at a given temp (in all solvents)
·
.
·
Scan have diferent values at different kinds of solutions (different in different solvents)
some exercises :
Ex) " Calculate the molar solubility" :
eletable - Uses instead of y
② (Given Ksp) plugs into Ksp-equation& solve for s
"What is the concentration ofcion]" ?: Igiven ionic compound & Kspl
① ICE Table with S
② solve for s pluy -
in equilibrium equation of ICE table of the cont
:
: of other Reutions
.
1. Define Ksp and be able to write an equation for Ksp for any ionic compound
Ksp (Solubility product constant) equilibrium expression : for the dissolution of a salt Cionic compond) into its (ag) ions.
· Nothing is completely insoluble, SALT
↳
TaA" (19)
not included
+ bB- (aq)
just very little dissolves >
- small - little amount of ions
(Al)"/BJ
"
Ksp =
lage -a lot
>
- Of in o
S(Molar Solubility) solubility :
↳ concentrations at Ksp
in Units of (mol/L)
We the Min to begin to form .
CIPITATE
2. Relate Ksp to equilibrium concentration of ions
:Ex
(S) related to (Ksp) MglOH (s)My(UG LOC
/
>
-
+
OM OM
+ S + 25
25 e](s)
* To compare solubilities of different componds (by comparing ksp values)
: -
componds MusT have the Edissociation stricione fuy
maconte
CaFc
201- Go stoichemetry 3
= 2F- comparation layer kso
-
+(a2 + + :
,
+
5
Eksp expression larger S
in terms of s
((S][2532)
↳ When different :
Solve for S (sorbility
ksp has only 1 value at a given temp (in all solvents)
·
.
·
Scan have diferent values at different kinds of solutions (different in different solvents)
some exercises :
Ex) " Calculate the molar solubility" :
eletable - Uses instead of y
② (Given Ksp) plugs into Ksp-equation& solve for s
"What is the concentration ofcion]" ?: Igiven ionic compound & Kspl
① ICE Table with S
② solve for s pluy -
in equilibrium equation of ICE table of the cont
