Molecular formulas
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MOLECULAR FORMULAS. Empirical Formulas – Simplest whole number ratio of atoms in a compound Molecular formula – A chemical formula that shows the actual number and kinds of atoms present in a compound. Which pair of molecules has the same empirical formula

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  • Empirical Formulas

    • Simplest whole number ratio of atoms in a compound

  • Molecular formula –

    • A chemical formula that shows the actual number and kinds of atoms present in a compound



Find the molecular formula for each of the following compounds given its empirical formula and molar mass

  • ethylene glycol (CH3O), used in antifreeze, molar mass of 62g/mol

  • P-dichlorobenzene (C3H2Cl), mothballs, molar mass of 147g/mol.





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