Education
Molar Mass Calculator
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Compute the molar mass and percent composition of any chemical formula, including parentheses and hydrates like CuSO4·5H2O.
Supports parentheses, e.g. Al2(SO4)3, and hydrates written with a dot, e.g. CuSO4.5H2O. Atomic weights from IUPAC 2021.
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Runs entirely in your browser. No data is sent to any server.
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v1.0
How to Use
Type a chemical formula such as C6H12O6 or Al2(SO4)3. The molar mass and each element's contribution appear instantly.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.