Molar Mass of PbO (Lead(II) Oxide)

Molar Mass Calculator

What is the molar mass of PbO?

Answer

M(PbO) ≈

223.2 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — Pb: 207.2.

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 ≈ 92.83%	≈ 92.83%
Ooxygen	1	15.999	15.999 w ≈ 7.17%	≈ 7.17%
Σ = 223.199 ≈ 223.2 g/mol w = 100%				100%

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

Mass fractions of the elements

Pb 92.83%

O 7.17%

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Molar masses of substances nearby

Formula	M, g/mol
HgO (mercury(II) oxide)	216.59
Mn₂O₇ (manganese heptoxide)	221.869
C₃H₆N₆O₆ (cyclonite)	222.117
PbO (lead(II) oxide)	223.2
ZnBr₂ (zinc bromide)	225.19
C₃H₅N₃O₉ (nitroglycerin)	227.085
C₇H₅N₃O₆ (TNT)	227.132

FAQ

What is the molar mass of PbO?

M(PbO) ≈ 223.2 g/mol

How to calculate the molar mass of PbO?

Add up the atomic weights of all the atoms in the formula: 207.2 + 15.999 = 223.199 ≈ 223.2 g/mol.

How many grams are in 2 moles of PbO?

m = n × M = 2 mol × 223.2 g/mol = 446.4 g.

See Also