Molar Mass of K2SO4 (Potassium Sulfate)
Molar Mass Calculator
What is the molar mass of K2SO4?
Answer
M(K2SO4) ≈
174.25 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 | |
|---|---|---|---|---|
| Kpotassium | 2 | 39.098 | 78.196 w ≈ 44.88% | ≈ 44.88% |
| Ssulfur | 1 | 32.06 | 32.06 w ≈ 18.40% | ≈ 18.40% |
| Ooxygen | 4 | 15.999 | 63.996 w ≈ 36.73% | ≈ 36.73% |
| Σ = 174.252 ≈ 174.25 g/mol w = 100% | 100% | |||
Each fraction is rounded on its own, so the printed ones add up to 100.01%; unrounded, they make exactly 100%.
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
K 44.88%O 36.73%
S 18.40%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| C₆H₇NO₃S (sulfanilic acid) | 173.19 |
| K₂HPO₄ (dibasic potassium phosphate) | 174.174 |
| C₆H₁₄N₄O₂ (L-arginine) | 174.204 |
| K₂SO₄ (potassium sulfate) | 174.25 |
| Lu (lutetium) | 174.97 |
| BaF₂ (barium fluoride) | 175.33 |
| HC₆H₇O₆ (vitamin C) | 176.124 |