Molar Mass of H2SO4 (Sulfuric Acid)
Molar Mass Calculator
What is the molar mass of H2SO4?
Answer
M(H2SO4) ≈
98.07 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — S: 32.06.
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Hhydrogen | 2 | 1.0080 | 2.0160 w ≈ 2.06% | ≈ 2.06% |
| Ssulfur | 1 | 32.06 | 32.06 w ≈ 32.69% | ≈ 32.69% |
| Ooxygen | 4 | 15.999 | 63.996 w ≈ 65.25% | ≈ 65.25% |
| Σ = 98.072 ≈ 98.07 g/mol w = 100% | 100% | |||
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
O 65.25%
S 32.69%H 2.06%
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