Give the formula of a compound which will give a precipitate with KI and K3PO4?
SOLUBILITY RULES
Solubilities of ionic substances in water:
1) All salts of Na+, K+, NH4+ are soluble in water.
2) All salts of NO3-, CH3COO- (C2H3O2-) are soluble in water.
3) All salts of Cl-, Br-, I- are soluble in water (except Ag+, Pb2+, Hg22+ )
4) All salts of SO42- are soluble in water ( except Ba2+, Pb2+, Sr2+)
SO42- of Ca2+, Ag+, Hg22+ are slightly soluble in water.
5) All salts of CO32-, PO43- are insoluble in water (except Na+, K+, NH4+)
6) All salts of S2- are insoluble in water ( except Na+, K+, NH4+, Ba2+,Ca2+, Mg2+, Sr2+)
7) All salts of O2-, OH- are insoluble in water ( except Na+, K+, NH4+, (Ba2+))
OH- of Ca2+, Sr2+, (Ba2+) are slightly soluble in water
OH- of Mg2+ is very very slightly soluble in water
STRONG ACIDS STRONG BASES
HCl LiOH
HBr NaOH
HI KOH
HClO4 RbOH
HNO3 CsOH
H2SO4 Mg(OH) 2
Ca(OH) 2
Sr(OH) 2
Ba(OH) 2
NiSO4
ZnCl2
Pb(NO3) 2
NaBr
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