The main content of this paper includes a model and an explanation. The model refers to a double layer model considering continuous polarization of the first water layer, distributed chemisorption, and chemisorption-induced dipole moment. The explanation refers to an ansatz that the capacitance data of Pt(111) reported in the work of Ojha et al. are not the pure double-layer capacitance, but include adsorption capacitances of H and OH. The explanation, that might be described by other models at varying levels of complexity, true or wrong. On the contrary, all models are wrong, but some may stand closer to the truth.