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Empirical formula
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== Examples == * [[Glucose]] ({{chem2|C6H12O6}}), [[ribose]] ({{chem2|C5H10O5}}), [[acetic acid]] ({{chem2|C2H4O2}}), and [[formaldehyde]] ({{chem2|CH2O}}) all have different molecular formulas but the same empirical formula: {{chem2|CH2O}}. This is the actual molecular formula for formaldehyde, but acetic acid has double the number of atoms, ribose has five times the number of atoms, and glucose has six times the number of atoms.
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