Free online molecular weight calculation with detailed element breakdown
| Symbol | Element | Atoms | Atomic Mass | Subtotal | % |
|---|---|---|---|---|---|
| As | Arsenic | 2 | 74.9220 | 149.8440 | 75.74% |
| O | Oxygen | 3 | 15.9990 | 47.9970 | 24.26% |
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