Now, in step two and three, what we want to do or do is find a cell voltage of our electrochemical cell and then use the cell voltage to find our equilibrium constant KC. So let's go to step two. Now, this is our formula that we want to use to find the cell voltage where this is the cell voltage of the reduction reaction and the cell voltage of the oxidation reaction. Now, we basically look these guys up on our table for reduction half reactions on the statement conditions and we find that our reduction cell voltage is zero point 43 negative, while our oxidation half reaction is negative zero point 44. Well, actually our reduction going this way because only reduction half reactions are listed. So we have to look at the guy going this way.