solubility the ability of an ionic compound to dissolve in water. the ability of an ionic compound...
TRANSCRIPT
SolubilitySolubility
The ability of an ionic compound to The ability of an ionic compound to dissolve in water.dissolve in water.
A soluble compound disappears A soluble compound disappears when mixed with water (aqueous)when mixed with water (aqueous) Mixing kool-aid with water is solubleMixing kool-aid with water is soluble
An insoluble compound can still be An insoluble compound can still be seen when mixed with waterseen when mixed with water Mixing sand with water is insolubleMixing sand with water is insoluble
DOUBLE REPLACEMENT DOUBLE REPLACEMENT REACTIONS REACTIONS
(PRECIPITATION)(PRECIPITATION) two compounds exchange positive two compounds exchange positive
ions.ions.
AB + XY AB + XY AY + XB AY + XB Both reactants areBoth reactants are ionic ionic
compounds in aqueous solution compounds in aqueous solution (aq).(aq).
NaNaCl + Cl + PbPb(NO(NO33))22 PbPbClCl22 + + NaNaNONO33
The Na and Pb switch placesThe Na and Pb switch places
DOUBLE REPLACEMENT DOUBLE REPLACEMENT REACTIONS REACTIONS
(PRECIPITATION)(PRECIPITATION)NaNaCl(aq) + Cl(aq) + PbPb(NO(NO33))22(aq) (aq) PbPbClCl22(s) + (s) +
NaNaNONO33(aq)(aq) For a double replacement reaction to occur, For a double replacement reaction to occur,
the reactants must be aqueous and at least one the reactants must be aqueous and at least one product needs to be a solid, liquid, or gasproduct needs to be a solid, liquid, or gas A solid (precipitate) is formed when a A solid (precipitate) is formed when a
product is insoluble. product is insoluble. A gas bubbles out of solution.A gas bubbles out of solution. A molecular compound (such as water) is A molecular compound (such as water) is
formed.formed.
DOUBLE REPLACEMENT DOUBLE REPLACEMENT REACTIONS REACTIONS
(PRECIPITATION)(PRECIPITATION)NaNaCl(aq) + Cl(aq) + PbPb(NO(NO33))22(aq) (aq) PbPbClCl22(s) + (s) +
NaNaNONO33(aq)(aq) How do we know if a compound is aq, s, l, g?How do we know if a compound is aq, s, l, g? We look it up on the periodic table or We look it up on the periodic table or
solubility tablesolubility table Ionic compoundsIonic compounds -- look up negative ion on -- look up negative ion on
solubility tablesolubility table Soluble on table – aqueousSoluble on table – aqueous Insoluble on table – solidInsoluble on table – solid
Molecular compoundsMolecular compounds – generally liquid, like – generally liquid, like water water
Label (s) or (aq):Label (s) or (aq): Ca(NOCa(NO33))22
AgBrAgBr MgIMgI22
AgClOAgClO33
Cu(CCu(C22HH33OO22))22
BaSOBaSO44
Label (s) or (aq):Label (s) or (aq): LiLi22COCO33
CuCOCuCO33
(NH(NH44))22CrOCrO44
ZnZn33(PO(PO44))22
PbSOPbSO33
KSOKSO33
CaSCaS Ca(OH)Ca(OH)22
ACID/BASE ACID/BASE NEUTRALIZATION NEUTRALIZATION
reactions between a strong acid and reactions between a strong acid and a strong base to produce a a strong base to produce a salt and salt and water.water.
NaOH + HCl --> NaCl + HNaOH + HCl --> NaCl + H22OO