1. Find the Greatest Common Factor (GCD):

* The GCD of 16, 12, 2, and 2 is 2.

2. Divide Each Subscript by the GCD:

* C₁₆H₁₂Cl₂O₂ / 2 = C₈H₆Cl₁O₁

3. Simplify the Formula:

* The empirical formula is C₈H₆ClO