Molar Mass of La (Lanthanum)
Molar Mass Calculator
What is the molar mass of La?
Answer
M(La) =
138.91 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024).
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Lalanthanum | 1 | 138.91 | 138.91 w = 100.00% | 100.00% |
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
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Neighbouring elements of the periodic table
| Formula | M, g/mol |
|---|---|
| Xe (xenon) | 131.29 |
| Cs (caesium) | 132.91 |
| Ba (barium) | 137.33 |
| La (lanthanum) | 138.91 |
| Ce (cerium) | 140.12 |
| Pr (praseodymium) | 140.91 |
| Nd (neodymium) | 144.24 |