So zinc solid reacts with nickel in the April state to produce zinc in the April state and nickel solid. We are also given our cell potential or cell voltage of our electrochemical cell under stanley conditions of 1 bar pressure and one molar concentration. And this is zero point 51 volts. We're also given the concentrations of nickel of this guy and the concentration of the zinc in the acreage state of this guy. So notice that two and three represent nonstandard conditions. And in fact, our goal is to find the cell potential under these nonstandard state conditions.