Final answer:
The equation V1/n1 = V2/n2 represents Avogadro's Law, which establishes a proportional relationship between the volume and number of moles of a gas at constant pressure and temperature.
Step-by-step explanation:
The law depicted by the equation V1/n1 = V2/n2 is Avogadro's Law. Avogadro's Law states that for a confined gas, the volume (V) and the number of moles (n) are directly proportional, assuming that the pressure and temperature remain constant. None of the other options (Boyle's Law, Charles's Law, or Dalton's Law) describe the relationship between volume and the number of moles of a gas. Boyle's Law, instead, relates pressure and volume, while Charles's Law relates volume and temperature.