Free online molecular weight calculation with detailed element breakdown
| Symbol | Element | Atoms | Atomic Mass | Subtotal | % |
|---|---|---|---|---|---|
| O | Oxygen | 4 | 15.9990 | 63.9960 | 42.13% |
| Fe | Iron | 1 | 55.8450 | 55.8450 | 36.76% |
| S | Sulfur | 1 | 32.0600 | 32.0600 | 21.11% |
Calculate the molar mass of any chemical formula for free
Try Molar Mass Calculator →