1. A method for simulating a chemical reaction using an electronic system comprising: providing an exponential current-voltage electronic device for modeling a chemical reaction event wherein: an electron concentration at an input of the exponential current-voltage electronic device is configured to model a concentration of a reactant in a chemical reaction event and an electron concentration at an output of the exponential current-voltage electronic device is configured to model a concentration of a product in the chemical reaction event; a current flow through the exponential current-voltage electronic device is configured to model a rate of the chemical reaction event; and a voltage applied at a terminal of the exponential current-voltage electronic device is configured to model a free energy difference in the chemical reaction event; applying a power characteristic at an input of the exponential current-voltage electronic device; measuring a power characteristic at an output of the exponential current-voltage electronic device; and generating a report indicative of a chemical species concentration from the measured power characteristic.