Empirical Formulas  What do all of these formulas have in common? CH C2H2C2H2 C3H3C3H3 C4H4C4H4  Empirical Formula-Reduced version of the molecular formula.

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Presentation transcript:

Empirical Formulas  What do all of these formulas have in common? CH C2H2C2H2 C3H3C3H3 C4H4C4H4  Empirical Formula-Reduced version of the molecular formula  Example: C 6 H 12 O 6 (glucose) Empirical formula: CH 2 O

How to Find an Empirical Formula given % composition Find the EF for a compound containing 74.0% carbon, 8.65% hydrogen, and 17.3% nitrogen by mass.