Aqueous Sclulioms
24-I AQveOUS TRANS 1TiON METALS
dative wval ent bon
Lewis acid- eletron par acceptor in tormation ot a
Lewis base edetron pair donor tomaton of a dative ovalent bond
n
Audty of complexin soutioni
pH ot omplex in solutioM is aftuted byi
harge of metal in
- Sie of metat im
Fe 3t more aidi than Fe , Fe 3t 1ns ore Sm all and
higuy and
charged (high charge density). They veey strongly uttract
electrons n the lo ordinated watee moleu w, weaeeniny OH bonds.
which_makes
This alows a H' n to leave and toma Hso Im,
solution acidu(audiky or hydralysis reation).
H-0, H-O.
’Fe3
3+
H
o-H
CFeCH, o).] ’ (Fe(H,o), OH)* + H*
act as an acid Wate act as a base proton aceptor.
Complex 1On Lfe CH,0), (oH),) and then
tu
Futhe hydroysiswhen
may complex is neutrad is forms a preepital.
give
FeCH, 0), (oH),:
Amphoterie hydroxides amphoterie
HydroxIdes ot aluminium and ch romium are
with both aid and bases.
Alum1n1um hydroxIdA and alkali +H,0
CAL CH, O ), (oH), l + OH- CAL (H, 0), loH)1
(H, 0) 3 (oH), ],s t 304 [AL (OH)] 3t, 0
[AL
hydoxdu and ucid :
Alumnm hydrox1du
[AL(H,o) , (oH),]s) +3H’ [AH,0),3"
24-I AQveOUS TRANS 1TiON METALS
dative wval ent bon
Lewis acid- eletron par acceptor in tormation ot a
Lewis base edetron pair donor tomaton of a dative ovalent bond
n
Audty of complexin soutioni
pH ot omplex in solutioM is aftuted byi
harge of metal in
- Sie of metat im
Fe 3t more aidi than Fe , Fe 3t 1ns ore Sm all and
higuy and
charged (high charge density). They veey strongly uttract
electrons n the lo ordinated watee moleu w, weaeeniny OH bonds.
which_makes
This alows a H' n to leave and toma Hso Im,
solution acidu(audiky or hydralysis reation).
H-0, H-O.
’Fe3
3+
H
o-H
CFeCH, o).] ’ (Fe(H,o), OH)* + H*
act as an acid Wate act as a base proton aceptor.
Complex 1On Lfe CH,0), (oH),) and then
tu
Futhe hydroysiswhen
may complex is neutrad is forms a preepital.
give
FeCH, 0), (oH),:
Amphoterie hydroxides amphoterie
HydroxIdes ot aluminium and ch romium are
with both aid and bases.
Alum1n1um hydroxIdA and alkali +H,0
CAL CH, O ), (oH), l + OH- CAL (H, 0), loH)1
(H, 0) 3 (oH), ],s t 304 [AL (OH)] 3t, 0
[AL
hydoxdu and ucid :
Alumnm hydrox1du
[AL(H,o) , (oH),]s) +3H’ [AH,0),3"
