Firstly, we need to establish that there is no Pb(OH)3 compound that exists in reality. You might have mistaken it with Pb(OH)2 or Pb(OH)4.
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Pb(OH)2 Definition
1.1 Names
1.1.1 Common name: Lead (II) Hydroxide
1.1.2 English name: Lead(II) Hydroxide
1.2. Atomic mass: Pb: 207.2; O: 16; H: 1
1.3. Molar mass: 241.2 g/mol
1.3.1 Molecular structure: 1 Pb2+ ion combined with 2 OH- ions.
1.4 Ion structure: Pb2+, OH- -
Properties of Pb(OH)2
2.1 Physical properties of Pb(OH)2
State: Solid
Color: White
Smell: Odorless
PH: Strong alkali
2.2 Chemical properties of Pb(OH)2: Pb(OH)2 has strong alkalinity, easily reacts with acid to form salt and water. -
Common chemical equations involving Pb(OH)2
3.1 Reaction with acid: Pb(OH)2 + 2HCl -> PbCl2 + 2H2O
4. Synthesis of Pb(OH)2
4.1 Laboratory synthesis of Pb(OH)2: Pb(NO3)2 + 2NaOH -> Pb(OH)2↓ + 2NaNO3.
Remember once again that Pb(OH)3 does not exist, as the Pb2+ ion cannot form a compound with three hydroxide ions.