Final answer:
To find the empirical formulas, divide the subscripts by the greatest common factor. The empirical formulas for the given compounds are C2H5, CH3O, C3H8O2, and C2H5.
Step-by-step explanation:
The empirical formulas represent the simplest ratio of atoms in a compound. To determine the empirical formula, we need to divide the subscripts by the greatest common factor.
a) C₂H₅: The greatest common factor is 1, so the empirical formula is C₂HȈ5.
b) CHȈO: Again, the greatest common factor is 1, so the empirical formula is CHȈO.
c) CȈ3HȈ8OȈ2: The greatest common factor is 1, so the empirical formula is CȈ3HȈ8OȈ2.
d) CȈ4HȈ10: The greatest common factor is 2, so the empirical formula is CȈ2HȈ5.