For 10 points, name this equation that calculates the potential of an electrochemical cell, named for a German.
One term in this equation is defined by the ratio of the initial concentrations in the reaction. This equation, which can be modified to analyze a membrane that is permeable to multiple ions, contains a term symbolized Q that is called the reaction quotient. The Goldman equation is a modification of this equation, which is often demonstrated by the use of a salt bridge connecting a cathode and an anode in solution. For 10 points, name this equation that calculates the potential of an electrochemical cell, named for a German.
One term in this equation is defined by the ratio of the initial concentrations in the reaction.
Nernst equation [accept Goldman-Hodgkin-Katz equation before "Goldman"]