The anodic dissolution of gold in chloride medium is a well-known phenomenon in many practical electrochemical applications. However, from the theoretical point of view, there is still a lack in the comprehension of how this process takes place. This work is a fundamental and deep study about the electrochemical stages involved in the gold dissolution process when chloride and perchloric ions are present in the electrode-electrolyte interface. The effect of chloride ion's concentration and the anodic polarized potential is extensively evaluated by cyclic voltammetry and electrochemical impedance spectroscopy. Here, we present four possible equivalent circuits where two of them are statistical and phenomenological valid to describe the adsorption process in absence and presence of charge transfer as well as the fundamental stages involved in the charge and mass transfer over the gold electrodissolution process. An extensively discussion concerning these processes and the phenomena associated to them are presented. The results satisfactorily complement previous knowledge acquired by others studies in where the electrochemical impedance spectroscopy was not applied. (c) 2017 The Electrochemical Society. All rights reserved.