Molar Mass of PbCl2 (Lead Chloride)

Molar Mass Calculator

What is the molar mass of PbCl₂?

Answer

M(PbCl₂) =

278.1 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024).

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Pblead	1	207.2	207.2 w ≈ 74.51%	≈ 74.51%
Clchlorine	2	35.45	70.90 w ≈ 25.49%	≈ 25.49%
Σ = 278.1 g/mol w = 100%				100%

Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)

Mass fractions of the elements

Pb 74.51%

Cl 25.49%

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Molar masses of substances nearby

Formula	M, g/mol
HgCl₂ (mercuric chloride)	271.49
Ag₂CO₃ (silver carbonate)	275.75
FeSO₄·7H₂O (ferrous sulfate heptahydrate)	278.01
PbCl₂ (lead chloride)	278.1
MgI₂ (magnesium iodide)	278.11
C₁₈H₃₄O₂ (oleic acid)	282.468
P₄O₁₀ (phosphorus pentoxide)	283.886

FAQ

What is the molar mass of PbCl2?

M(PbCl₂) = 278.1 g/mol

How to calculate the molar mass of PbCl₂?

Add up the atomic weights of all the atoms in the formula: 207.2 + 2 × 35.45 = 278.1 g/mol.

How many grams are in 2 moles of PbCl₂?

m = n × M = 2 mol × 278.1 g/mol = 556.2 g.

See Also