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Empirical Formula Calculator
Stoichiometric Accuracy:
IUPAC atomic weights with fraction rationalization.
Input Mode
Percent Composition (%)
Mass Composition (g)
Enter Composition:
Element
Percent (%)
+ Add Element
Calculate Empirical Formula
Empirical Formula:
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Calculation Breakdown
Element
Input Value
Moles
Mole Ratio
Subscript
Export CSV
Print