Lead Chloride Precipitation

Pb(NO₃)₂ + 2NaCl → PbCl₂↓ + 2NaNO₃

Ikhtisar

Lead nitrate reacts with sodium chloride to form a white precipitate of lead chloride (Ksp = 1.7 × 10⁻⁵). PbCl₂ is moderately insoluble at room temperature but becomes quite soluble in hot water, distinguishing it from AgCl. The precipitate consists of fine needle-like crystals.

Peserta

Peran	Zat	Koefisien	Keadaan
Reaktan	Sodium Chloride NaCl	2	(aq)
Produk	Sodium Nitrate NaNO₃	2	(aq)

Contoh Sehari-hari

In qualitative analysis, PbCl₂ is separated from AgCl and Hg₂Cl₂ by dissolving it in hot water, a key step in Group I cation analysis.

Pentingnya dalam Industri

Lead chloride precipitation is important in lead recycling processes and in understanding lead contamination behavior in water treatment.

Sifat

Jenis: Precipitation
Dapat Dibalik: Tidak
Energi: Eksoterm
ΔH: -14,0 kJ/mol

Reaksi Terkait

Aluminum Hydroxide Precipitation Barium Carbonate Precipitation Barium Sulfate Precipitation Cadmium Sulfide Precipitation (Yellow) Calcium Fluoride Precipitation (Fluorite) Calcium Phosphate Precipitation (Bone Mineral) Chromium(III) Hydroxide Precipitation Lead Carbonate Precipitation Calcium Carbonate Precipitation Iron(III) Hydroxide Precipitation

Frequently Asked Questions

What is the equation for Lead Chloride Precipitation?

The balanced equation is: Pb(NO₃)₂ + 2NaCl → PbCl₂↓ + 2NaNO₃.

What type of reaction is Lead Chloride Precipitation?

Lead Chloride Precipitation is a precipitation reaction.

Is Lead Chloride Precipitation exothermic or endothermic?

Lead Chloride Precipitation is exothermic (releases energy). The enthalpy change (ΔH) is -14.0 kJ/mol.