chemistry - empirical formula

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write the empirical formula for each of the following molecular formulae"
a)P4O10
b)C2H6

Confused as to what the diff.is b/w empirical and formula...have no idea how to answer these b/c they look like empirical formulas to me

  • chemistry - empirical formula -

    empirical is lowest whole ratio
    P2O5
    formula reflects how it is combined
    P4O10

  • chemistry - THANKS BOB. -

    THANKS FOR ALL YOUR HELP TODAY.

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