Chemistry

Question Analysis
This question involves deriving an empirical formula from a given molecular formula.
The main focus is on finding the greatest common factor (GCF) of the subscripts and dividing each subscript by the GCF.

Key Concept Explanation
To find the empirical formula from a molecular formula, identify the GCF of all subscripts and divide each subscript by this factor.
If the GCF is 1, the empirical and molecular formulas are the same.

Step-by-Step Solution
1. Identify subscripts in C₄H₈O₂: 4 (C), 8 (H), 2 (O)
Find GCF of 4, 8, ...